Xio just took a math test with 25 questions, each worth an equal
number of points.
The test is worth 100 points total. If a score of 70
points earns a grade of C, how many questions would Xio need to get
right to get a grade a of C on the test?

Answers

Answer 1
X = number of points per question
25 * x = 100
x = 100/25
x = 4
let y = number of questions right
70 = y*4
y= 70/4
y = 17 r 2
Must round up to fall in the grade boundary:
= 18 question right
Answer 2
18 correct to get a grade of a c

Related Questions

Solve 5kx + 6 = 7 kx for x.

Answers

Subtract 6 on both sides

5kx + 6 - 6 = 7kx - 6
5kx = 7kx - 6

Then subtract 7kx on both sides
5kx - 7kx = 7kx - 6 - 7kx
-2kx = -6

Now divide by -2k on both sides
-2kx/-2k = -6/-2k
x = -6/-2k
Simplify
x = 3/k

Which is an example of the associative property?


–5 + 7 = 7 + (–5)


–(18 + 3) = –18 + (–3)


(–8 + 10) + 4 = –8 + (10 + 4)


–17 + 0 = –17

Answers

–5 + 7 = 7 + (–5)  is an example of the associative property. Option A

This is further explained below.

What is associative property?

Generally, The associative property is a rule in mathematics that states that the product of a multiplication problem does not depend on the method in which the elements that are being multiplied do not vary.

In conclusion, Even if the numbers on each side of the equal sign are written in the opposite direction, adding -5 to 7 still results in the same answer: 7 plus (-5).

Read more about associative property

https://brainly.com/question/5637942

#SPJ1

quantity a: the number of prime numbers between 0 and 100, inclusive. quantity b: the number of prime numbers between 101 and 200, inclusive.

Answers

The correct option is Quantity a: the number of prime numbers between 0 and 100, inclusive is greater.

What is a prime number?

A prime number is a natural number greater than 1 that is not the sum of two lesser natural numbers (or a prime). Any natural number greater than one that is not prime is referred to as a composite number. For instance, the product 1 5 and 5 1 are the only two ways to write the number 5, making it a prime. The fact that it is the sum of two smaller integers (2 x 2), 4, however, makes it composite. Primes play a significant role in number theory because of the fundamental theorem of arithmetic, it states that any natural number greater than one is either a prime number itself or may be factored as a unique prime product up to the order of the primes. the prime number (or a prime).

The number of primes reduces almost exponentially as we move up the number line. The prime numbers between 0 and 100 are therefore far more numerous than those between 101 and 200. It is crucial to understand this general number theory point, but it may also be rapidly illustrated by attempting to find some primes in these two groups.

To learn more about prime number ,visit:

https://brainly.com/question/15048606

#SPJ4

Emmett made sand art bottles to sell at his school's craft fair. He wanted to use 9 different colors of sand. So, he bought 1 pound of each color. Then, he filled as many 6-ounce bottles as he could. How many sand art bottles did Emmett make?

Answers

The number of bottles will be 24 bottles.

How to calculate the value?

It should be noted that 1 pound = 16 ounces.

Since he bought 1 pound of each color, the total pounds will be:

= 1 × 9 = 9 pounds.

The number of sand art will be:

= 9 pounds / 6 ounce

= (9 × 16) / 6

= 24 bottles

Learn more about ounce on:

brainly.com/question/14953687

#SPJ1

if you are riding on a ferris wheel that is 60 feet tall and it takes you 5 minutes

Answers

Answer:

0.62 feet per second

Step-by-step explanation:

Write the expression as a number in scientific notation.

quantity 7 times 10 cubed end quantity times quantity 5.4 times 10 to the fourth power end quantity all divided by quantity 9 times 10 squared
4.2 x 1010
3.4 x 1010
4.2 x 105
3.4 x 105

Answers

The expression as a number in scientific notation is 4.2 * 10^5

How to write the expression as a number in scientific notation?

The expression is given as:

quantity 7 times 10 cubed end quantity times quantity 5.4 times 10 to the fourth power end quantity all divided by quantity 9 times 10 squared

Rewrite properly as:

[7 * 10^3 * 5.4 * 10^4]/[9 * 10^2]

Evaluate the product of 7 and 5.4

So, we have:

[37.8* 10^3 * 10^4]/[9 * 10^2]

Evaluate the product of 10^3 and 10^4

So, we have:

[37.8* 10^7]/[9 * 10^2]

Evaluate the quotient of 37.8 and 9

So, we have:

[4.2 * 10^7]/[10^2]

Evaluate the quotient of 10^7 and 10^2

So, we have:

4.2 * 10^5

Hence, the expression as a number in scientific notation is 4.2 * 10^5

Read more about scientific notation at

https://brainly.com/question/5756316

#SPJ1

.
Which of the following shows a graph of the equation above?

Answers

Can you provide more information?

A polygon is regular if each of its sides has the same length. Find the perimeter of the regular polygon.

Answers

Based on the calculations, the perimeter of this regular polygon is equal to 7.5 units.

What is a polygon?

A polygon can be defined as a two-dimensional geometric shape that comprises straight line segments and a finite number of sides. Also, some examples of a polygon include the following:

TriangleQuadrilateralPentagonHexagonHeptagonOctagonNonagon

How to determine the perimeter of this regular polygon?

Since this polygon is a regular polygon with each of its sides being equal, we have:

3(x - 1) = 5x - 6

3x - 3 = 5x - 6

5x - 3x = 6 - 3

2x = 3

x = 3/2

x = 1.5.

The measure of each of its sides is given by:

3x - 3 = 5x - 6

3(1.5) - 3 = 5(1.5) - 6

4.5 - 3 = 7.5 - 6

1.5 = 1.5

Each side, a = 1.5 units.

Now, we can determine the perimeter of this regular polygon:

Perimeter of pentagon = 5a

Perimeter of pentagon = 5 × 1.5

Perimeter of pentagon = 7.5 units.

Read more on polygon here: https://brainly.com/question/19034638

#SPJ1

how to write and solve; two times the quantity of 7x plus 5 equals -32?

Answers

Answer: x = -3

Step-by-step explanation:

     First, we will write an equation.

two times ➜ 2 *

7x plus 5 7x + 5

equals -32 ➜ -32

       2(7x+5) = -32

     Next, we will solve by isolating the x variable.

2(7x+5) = -32

14x + 10 = -32

14x = -42

x = -3

Evaluate the expression when x = 5:

10|7−x|

A. -120

B. -20

C. 20

D. 120

Answers

Answer:

C. 20

Step-by-step explanation:

10|7−x| here we are asked to find the absolute value.

x is given as 5 so if we just rewrite the expression:

10|7-5| = 20 because absolute value cannot be negative.

what is the 15th term of the general term

n(n+1)
______
2

Answers

Answer:

a₁₅ = 240

Step-by-step explanation:

to find the 15 th term substitute n = 15 into the general term

a₁₅ = 15(15 + 1) = 15(16) = 15 × 16 = 240

What is 75 Of 625 percent

Answers

Answer:

75 * (625 percent) = 468.75

Step-by-step explanation:

Mia is making smoothies. Each smoothie uses 1/2 cup of yogurt. How much yogurt
does she need to make 7 smoothies?
To solve, we'll need to _______
because we know the SIZE of the groups and the _______
but we don't know the ______

Answers

Answer: 3.5 cups

To solve, we'll need to multiply because we know the SIZE of the groups and the amount of groups but we don't know the total amount.

what is the equation of the line that passes through the points (-8,1) and (7,1)​

Answers

Answer:

y = 1

Step-by-step explanation:

the equation of a horizontal line parallel to the x- axis is

y = c

where c is the value of the y- coordinates the line passes through

the line passes through (- 8, 1 ) and (7, 1 )

both with y- coordinates of 1 , then

y = 1 ← is the equation of the line

please help this is my last attempt

Answers

Answer:

see explanation

Step-by-step explanation:

525 divided by 1500 may be expressed in the following ways

525 ÷ 1500

[tex]\frac{525}{1500}[/tex]

     

1500  | |525

   

     

Answer:

See attached image

Step-by-step explanation:

I could not figure out how to do the long division symbol on the keyboard so I highlighted the answers in the attached.

Bob's Gift Shop sold 300 cards for Mother's Day. One salesman, Kaj, sold 4% of the
cards sold for Mother's Day. How many cards did Kaj sell?
Divide/scale down to solve for the missing percent.
cards
4
percent
300
100

Answers

Answer:12

Step-by-step explanation: 300 times 0.04 (4%) is 12

I WILL GIVE BRAINLIEST SND 59 POINTS PLS ANSWER ALL OF THE QUESTIONS At a bargain store, Tanya bought 4 items that each cost the same amount. Tony bought 5 items that each cost the same amount, but each was $1.75 less than the items that Tanya bought. Both Tanya and Tony paid the same amount of money. What was the individual cost of each person's items?
(a) Write an equation. Let x represent the cost of one of Tanya's items
(b) Solve the equation. Show your work.
(c) Check your solution. Show your work.
(d) State the solution in complete sentences​

Answers

Please reference the image.

Equation: 5(x-1.75)=4x

Work:

5x-8.75=4x

X= 8.75

Solution Check: 5(8.75)-8.75=4(8.75)
43.75-8.75=35 / 4(8.75)= 35

The cost of one of Tanya’s items is 8.75

Evaluate the following expression when n = 2.
A. -1
B. 0
C. 4
D. 5
14n-61 +1-31

Answers

The value of expression is -61

In the given question is that:

Evaluate the expression when n = 2

and, Equation is = 14n - 61 + 1- 31

Now, According to the question :

Put the value of n= 2 in above equation:

then, 14 x 2 - 61 +1 - 31

= -61

Hence, The value of expression is -61

Composition of Functions:

The composition of function is the process of creating another function by applying a function as an input to another function.

Learn more about Functions and Equations at:

https://brainly.com/question/23589082

#SPJ1

HELPPPPP ASAPPPP PLS

Answers

Answer:

-1/6

Step-by-step explanation:

-1/6 is your answer. -0.16…. Is the quotient of two integers; in other words, -a/b = -.16…. We will convert this decimal to a percent so that we can find the values of a/b. -.16…. • 100 = -16%. We know that a percent is a ratio out of 100. So -16% = -16/100. We can reduce this fraction to -1/6.

HELP PLS FAST ITS EZZ ALEBRA

Answers

The domain is D: 0  ≤ f ≤ 8The range is R: 0 ≤ c ≤ 192

And the correct graph is the one in option b.

What is the correct graph of the function?

We know that you have 8 cups of flour, and it takes one cup of flour to make 24 cookies.

Then the linear function:

c(f) = 24*f

Relates the number of cookies that we can make using f cups of flour.

Then the possible domain of this function (the possible values of f) is given by:

0  ≤ f ≤ 8

The maximum number of cookies that can be made is:

24*8 = 192

And the range is:

0 ≤ c ≤ 192

With that in mind, we can see that the correct graph is the one in option b.

If you want to learn more about linear functions:

https://brainly.com/question/4025726

#SPJ1

An artist is selling children's crafts necklaces cost 2.25 each, and brackets cost 1.50 per each select all the combinations of necklaces and braclets that the artist could sell for exactly 12.00​

Answers

Answer: 4 necklaces 2 bracelets. 8 bracelets. 2 necklaces 5 bracelets

Step-by-step explanation:

-12 - ([tex]\frac{2}{3} \[/tex]=

Answers

Answer:

[tex]-\frac{38}{3}[/tex]

Step-by-step explanation:

[tex]-12-\frac{2}{3}\\-12 = \frac{-36}{3} = \left(-36\right) \div 3\\\frac{-36}{3}-\frac{2}{3}\\=\frac{-36-2}{3}\\=\frac{-38}{3}[/tex]

Hope this helps!

Help me pleaseeeee!!!!!!!

Answers

Answer:

domain ( - ∞, ∞ )

Step-by-step explanation:

there is no endpoint at either end of the line and it continues forever in both directions, then

domain is ( - ∞, ∞ )

Answer:

(-infinity, +infinity)

Step-by-step explanation:

(-infinity,+infinity) because at quadrant III, the line is extending forever into negative infinity, and in quadrant IV, the line is extending forever into positive infinity

The function g(x) is a transformation of the cube root parent function,
f(x)=√x. What function is g(x)?
5-
1
-5-
1
g(x)
f(x)
5
O A. g(x)=√x+2+1
B. g(x)=√x-1+2
O C. g(x)=√x-2+1
O D. g(x)=√x+1+2

Answers

By using horizontal and vertical translations, we find that the expression for g(x) is g(x) = [tex]\sqrt[5]{x - 2}[/tex] + 1. (Correct choice: C)

What kind of transformations have been done on a parent function to generate another function?

The picture presents us the graphs of two functions. The blue function represents the parent function f(x), whose form is [tex]f(x) = \sqrt[5]{x}[/tex], whereas the black function is the transformed function g(x), which is the result of applying two transformations:

Horizontal translation 2 units in +x direction.Vertical translation a unit in +y direction.

Then, we must apply the following definition involving the concepts of horizontal and vertical translations:

g(x) = f(x - 2) + 1     (1)

If we know that [tex]f(x) = \sqrt[5]{x}[/tex], then the complete expression of the function is:

g(x) = [tex]\sqrt[5]{x-2}[/tex] + 1

Hence, by using horizontal and vertical translations, we find that the resulting expression for g(x) is g(x) = [tex]\sqrt[5]{x - 2}[/tex] + 1. (Correct choice: C)

To learn more on transformation rules: https://brainly.com/question/9201867

#SPJ1

Use synthetic division to divide.
(6x³ +3x + 9) \ (x + 2)

Answers

Answer:

Step-by-step explanation:

Tell whether the value is a solution of the inequality 5 − x < 8; x = −3

Answers

Answer:

The value is not a solution of the inequality.

Step-by-step explanation:

5 - x < 8

1. Substitute the variable, x, with -3: 5 - - 3 < 8

2. Use the KCC (keep,change,change) method to turn subtraction into addition: 5 + + 3 < 8

3. Add the numbers on left side of the inequality to get the answer: 8 < 8 - False statement - 8 is not less than 8.

Homework Task 3: Item C
< Back to task
Bookwork code: K90
Calculator
not allowed
Give your answer as an integer or as a fraction in its simplest form.
o
-6-5
-3-2
~ 34
6
5-
4-
27
-4
W
2345
Watch video
6
120 XP
x
Carley
Answer

Answers

Answer:

Step-by-step explanation:

-4w

nkjiug  kglkr fho'f v

which pair of numbers have a greatest common factor of 3? select each correct answer. 3 and 9 3 and 9 18 and 15 18 and 15 15 and 20 15 and 20 6 and 9

Answers

The pair of numbers that have the greatest common factor of 3 are:

6 and 9

18 and 15

3 and 9

What is greatest common factor?

The biggest number, which is the variable of at least two number is known as the Best Normal Element (GCF). It is the biggest number (factor) that partition them bringing about a Characteristic number. When every one of the elements of the number are found, there are not many variables which are normal in both.

The factors of 6 and 9 are:

6 ⇒ 1, 2, 3 and 6

9 ⇒ 1, 3, 9

The greatest common factor here is therefore 3.

The factors of 18 and 15 are:

18 ⇒ 1, 2, 3, 6, 9 and 18

15 ⇒ 1, 3, 5, and 15

Greatest common factor is also 3

The factors of 3 and 9 are:

3 ⇒ 1 and 3

9 ⇒ 1, 3, 9

Greatest common factor here is also 3.

Learn more about greatest common factor, refer:

https://brainly.com/question/4802873

#SPJ4

The diagram shows a rectangle ABCD.The point A is (2,14) , Bus (-2,8) and C lies on the x-axis.

Find

(i) the equation of BC.

(ii) the coordinates of Cand D.

Answers

Using linear function concepts, it is found that:

i) The equation of BC is given by: [tex]y = -\frac{2}{3}x + \frac{20}{3}[/tex].

ii) The coordinates of C are C(0,10) and the coordinate of D are D(14,6).

What is the missing information?

The diagram is missing, and is shown in the graph at the end of the answer.

What is a linear function?

A linear function is modeled by:

y = mx + b

In which:

m is the slope, which is the rate of change, that is, by how much y changes when x changes by 1.b is the y-intercept, which is the value of y when x = 0, and can also be interpreted as the initial value of the function.

For this problem, the coordinates are given as follows:

A(2, 14), B(-2,8) and C(x,0).

From the diagram, AB and BC are perpendicular, meaning that the multiplication of their slopes is of -1.

Given two points, the slope is given by change in y divided by change in x. Hence the slope of AB is given as follows:

mAB = (8 - 14)/(-2 - 2) = 3/2.

The slope of BC is given as follows:

mBC = (0 - 8)/(x - (-2))

mBC = -8/(x + 2).

The multiplication of the slopes is of -1, hence:

mAB x mBC = -1

-12/(x + 2) = -1

- x - 2 = -12

x = 10.

Hence, the slope of BC is:

mBC = -8/(x + 2) = -8/12 = -2/3.

Then:

y = -2/3x + b.

When x = 10, y = 0, hence we can find b as follows:

0 = -2/3(10) + b

b = 20/3.

Hence:

The equation of BC is given by: [tex]y = -\frac{2}{3}x + \frac{20}{3}[/tex].

From the diagram, we also have that AB and CD are parallel, meaning that they have the same slope, hence, considering D(x,y), we have that:

mCD = mAB

y/(x - 10) = 3/2

y = 1.5(x - 10)

y = 1.5x - 15.

AD and BC are also parallel, hence:

mAD = mBC

(y - 14)/(x - 2) = -2/3

Since y = 1.5x - 15, we have that:

(1.5x - 15 - 14)/(x - 2) = -2/3

(1.5x - 29)/(x - 2) = -2/3

3(1.5x - 29) = -2(x - 2)

4.5x - 87 = -2x + 4.

6.5x = 91

x = 91/6.5

x = 14.

y = 1.5x - 15 = 1.5(14) - 15 = 21 - 15 = 6.

Hence:

The coordinates of C are C(0,10) and the coordinate of D are D(14,6).

More can be learned about linear functions at https://brainly.com/question/24808124

#SPJ1

a match box has length x cm, width x +1 cm and height 3 cm. express its surface area as a function of x

Answers

Answer:

2x² + 14x + 6

Step-by-step explanation:

A match box is in the shape of a right rectangular prism so we can use the formula for the surface area of such a solid

A=2(wl+hl+hw)

where l = length, w=width and h = height

Substituting l = x, w = x+1 and height = 3 we get

wl = x(x + 1) = x² + x

hl = 3x

hw = 3(x + 1) = 3x + 3

So A = 2( x² + x + 3x + 3x + 3)

A = 2(x² + 7x + 3)

A = 2x² + 14x + 6

Other Questions
Use context clues to determine the meaning of exceptional as it is used in paragraph five. Write your definition here and identify clues that helped you figure out its meaning. Help if u can do 29 and 30 if 4x + 2y = 20 what is the value of 8x+4y/5 Find the distance between the tips (ends) of the Minute Hand and the Hour Hand. The Minute Hand has a length of 17.0 ft. The Hour Hand has a length of11.0 ft. Jaronda is a member of a dance team. As a fundraiser, she and the other members of the team decide that she will use the teams money to buy flowers in bulk, sell the flowers individually to students with her schools permission, and return the teams money plus any profits she makes. What is the MOST accurate name for Jarondas role?A. project managerB. network facilitatorC. data managerD. systems operator what and how the dark web brings negative effects on society a client is scheduled for a nerve-sparing prostatectomy. the emotional spouse confides in the nurse that the client will not talk about the cancer and/or upcoming surgery. which nursing diagnosis will the nurse choose as primary diagnosis for this client? memory depends on the . a. age of the person b. intellect of the person c. activation of a person's neurons d. tricks a person uses please select the best answer from the choices provided a b c d a sequence is constructed by listing all the possible numbers that contain no digit greater than 3 in ascending order. what is the 2021st term of this sequence? How much force is required to make a 12kg object accelerate 0.5m/s/s? (ii) An element A is in period 3 and it loses three electrons to form an ion. (a) Write the electronic configuration of atom A. (B) Calculate the number of atoms in element A if it has a mass of 27.0g.[5.022x10^23] (c)What is the name of the ion formed? 30 points mathamatics the quotient of 10 and a number in math terms When is the summer solstice?A. March 20th or 21stB. September 21st or 22ndC. June 20th or 21stD. December 21st or 22nd Find the values of x and z (please Help) during a gravimetric analysis experiment to determine the salt (nacl) content of a chicken soup sample, a precipitate of silver chloride was produced, dried and weighed. the sources of error in the analysis include Really people help me on this page I give crown What is the correct definition of revision? the final step in the creative witting process checking drafts of writing for errors in mechanics the first step in the creative writing process developing drafts of writing into more polished works solve pls brainliest after teaching a group of students about measuring systems and drug calculations, the instructor determines that the teaching was successful when the students identify which system as most widely used?