PLEASE ANSWER!!!! SIMPLE MATH PROBLEM PLEASE

Answer:

80%

Step-by-step explanation:

Let's call the past exam mark m,

m*105%=84

m*105/100=84

m=84/(105/100)

m=80

Hope this helps!

Answer:

80

Step-by-step explanation:

new value = 84

old value = n

can use percent change formula:  (new value - old value) / old value = 5/100

[tex]\frac{84-n}{n}[/tex] = [tex]\frac{5}{100}[/tex]

cross-multiply (you can simplify 5/100 to be 1/20 first):  20(84 - n) = n

1680 - 20n = n

1680 = 21n

n = 80

Answer:

shade in 9 boxes (9/24)

Step-by-step explanation:

there are 24 boxes, so to create the equivalent fraction you multiply both the numerator and denominator of 3/8. this gives you 9/24. hope this helps!

Answer:

1. The car is traveling at a constant speed  2. The car stopped 3. The speed is decreasing

Step-by-step explanation:

9514 1404 393

Answer:

Step-by-step explanation:

You recall the relation between speed, distance, and time is ...

  speed = distance / time

The graph is of distance vs. time. that means speed is the slope (distance/time) of the curve on the graph. If the slope is zero (a horizontal line), distance is not changing, and the speed is zero. That is, the vehicle has stopped.

If the slope is a positive constant, the vehicle is traveling at a constant speed.

If the slope is high, but becoming lower as the curve progresses left-to-right, then the speed starts high, but becomes lower: the vehicle is slowing down.

__

The graphs, left-to-right, represent a vehicle that is ...

  traveling at constant speed

  stopped

  slowing down

Answer:

Han's mixture tastes stronger, because...

Han's uses 6 2/3 cups of water for every 1 cup of orange juice concentrate.

Clare uses 7 1/2 cups of water for every 1 cup of orange juice concentrate.

Step-by-step explanation:

Claire

Cups of water = 2 1/2 cups

Cups of orange juice = 1/3

Cups of water for every cup of orange juice = 2 1/2 ÷ 1/3

= 5/2 × 3/1

= 15/2

= 7 1/2

Han:

Cups of water = 1 2/3 cups

Cups of orange juice = 1/4 cups

Cups of water for every cup of orange juice = 1 2/3 ÷ 1/4

= 5/3 × 4/1

= 20/3

= 6 2/3

Step-by-step explanation:

Well, each marker is 1/2, and the number line goes from 0-5/2, and A is on the first marker, A=1/2

Answer:pi^4

Step-by-step explanation:

When you divide exponents, you subtract them. So you would subtract 11-7=4. The exponent would be 4 and base would be ok. Brainlist please!

Answer:

2597

Step-by-step explanation:

Answer:

$956

Step-by-step explanation:

Interest = Principal(Rate)(Time)/100

Interest = 838.5(19)(6)/100)

Interest = $95589/100

Interest = $955.89

Interest = $956(to the nearest cent)(Answer)

Answer:

$3.0375

Step-by-step explanation:

Original price of dinner = $2.25

If cost percentage of 35%, then the additional cost paid will be;

35% * 2.25

= 0.35 * 2.25

= $0.7875

Target price = Original price + additional cost

Target price = $2.25 + $0.7875

Target price = $3.0375

Answer/Step-by-step explanation:

4x - 7 = -2x + 12 (Given)

Add 2x to both sides

4x - 7 + 2x = -2x + 12 + 2x (Addition property of equality)

6x - 7 = 12 (Simplication)

Add 7 to both sides

6x - 7 + 7 = 12 + 7 (Addition property of equality)

6x = 19 (Simplification)

Divide both sides by 6

[tex] \frac{6x}{6} = \frac{19}{6} [/tex] (Division property of equality)

[tex] x = \frac{19}{6} [/tex]

The correct justification, provides the right reasons for the given

mathematical operation.

Responses:

3. Simplification

6·x - 7 + 7 = 12 + 7  [tex]{}[/tex]             4. Addition property of equality

The two column solution is presented as follows;

Step [tex]{}[/tex]                                               Justification

4·x - 7 = -2·x + 12  [tex]{}[/tex]                       1. Gives

4·x - 7 + 2·x = -2·x + 12 + 2·x [tex]{}[/tex]     2. Addition property of equality

6·x - 7 = 12  [tex]{}[/tex]                                 3. Simplification

6·x - 7 + 7 = 12 + 7 [tex]{}[/tex]                      4. Addition property of equality

6·x = 19 [tex]{}[/tex]                                       5. Simplification

[tex]\dfrac{6 \cdot x}{6} = \dfrac{19}{6}[/tex]                           [tex]{}[/tex]           6. Division property of equality

Learn more about the properties of equality here:

https://brainly.com/question/4207575

Answer:

angle 2 and angle 8 are alternate interior angles

Step-by-step explanation:

Answer:

The quotient of two integers may not always be an integer.

Therefore, I do not agree when a student says that the sum difference, product, and quotient of two are always integers.

Step-by-step explanation:

The student is not largely correct!

The sum, difference, and product of two integers is indeed always an integer.

But, the quotient of two integers may not always be an integer.

i.e.

4/2 = 2

i.e.

2/3 = 0.67

Therefore, I do not agree when a student says that the sum difference, product, and quotient of two are always integers.

Given:

Volume of Large cube = 1 cubic unit

Volume of small cube = [tex]\dfrac{1}{27}[/tex] cubic unit

To find:

The difference between the edge length of the large cube and the edge length of the small cube.

Solution:

Let the edges of large and small cubes are [tex]a_1[/tex] and [tex]a_2[/tex] respectively.

We know that, volume of a cube is

[tex]V=(edge)^3[/tex]

Volume of Large cube = 1 cubic unit

[tex](a_1)^3=1[/tex]

Taking cube root on both sides, we get

[tex]a_1=1[/tex]

So, edge of large cube is 1 unit.

Volume of small cube = [tex]\dfrac{1}{27}[/tex] cubic unit

[tex](a_2)^3=\dfrac{1}{27}[/tex]

Taking cube root on both sides, we get

[tex]a_2=\dfrac{1}{3}[/tex]

So, edge of large cube is [tex]\dfrac{1}{3}[/tex] unit.

Now, difference between them is

[tex]d=a_1-a-2[/tex]

[tex]d=1-\dfrac{1}{3}[/tex]

[tex]d=\dfrac{3-1}{3}[/tex]

[tex]d=\dfrac{2}{3}[/tex]

Therefore, the difference between the edge length of the large cube and the edge length of the small cube is [tex]\dfrac{2}{3}[/tex] unit.

Answer:

The answer is x=27/28

Step-by-step explanation:

Solve for x by simplifying both sides of the equation, then isolating the variable.

The solution of the expression is,

⇒ x = 27/28

Mathematical expression is defined as the collection of the numbers variables and functions by using operations like addition, subtraction, multiplication, and division.

Given that;

The expression is,

⇒ 2x - 1/4 + x/3 = 2

Now, Solve the expression as;

⇒ 2x - 1/4 + x/3 = 2

⇒ 2x + x/3 = 2 + 1/4

⇒ 7x/3 = 9/4

⇒ 7x = 27/4

⇒ x = 27/28

Learn more about the mathematical expression visit:

brainly.com/question/1859113

#SPJ2

Answer:

y=1/4x−6

Step-by-step explanation:

Write in slope-intercept form, y = m x + b .

Answer:  y  = 1/4x + 6

Step-by-step explanation:

12y -3x = 72      Add  3x to both sides

     +3x    +3x

12y = 3x + 72     Divide both sides by 12.

y = 1/4x +  6

Answer:

[tex]4x-3[/tex]

Step-by-step explanation:

[tex](7x-5) -(3x-2)[/tex]

Remove unnecessary parentheses

[tex]7x-5-(3x-2)[/tex]

When there is a " _" in front of any expression in parentheses , change the sign of each term of the expression.

[tex]7x-5-3x+2[/tex]

Collect Like terms by subtracting their Coefficients

[tex](7-3)x[/tex]

Subtract the numbers

[tex]4x-5+2[/tex]

Keep the sign of the number with the larger absolute value and subtract the smaller absolute value from the larger

[tex]-(5-2)[/tex]

Subtract the numbers

[tex]-3[/tex]

[tex]4x-3[/tex]

PLEASE MARK ME AS BRAINLIEST

Answer:

1.83 was not thrown away

Answer:

2 1/6

Step-by-step explanation:

6 1/2 - 4 2/3 = 2 1/6

Answer: 3 3/9+7 6/11 = 10 87/99

Step-by-step explanation:

a. 3 3/9+7 6/11 = 10 87/99

First and foremost, we need to know the lowest common multiple of 9 and 11 which is 99.

Therefore, 3 3/9 + 7 6/11 would be:

= 3 33/99 + 7 54/99

= 10 87/99

This is correct

b. 2 3/8 + 6 4/5 = 8 12/40

First and foremost, we need to know the lowest common multiple of 8 and 5 which is 40.

Therefore, 2 3/8 + 6 4/5 would be:

= 2 15/40 + 6 32/40

= 8 47/40

= 9 7/40

Since the answer gotten is 8 12/40. This is wrong.

c. 3 3/7 + 4 2/3 = 7 2/21

First and foremost, we need to know the lowest common multiple of 7 and 3 which is 21.

Therefore, 3 3/7 + 4 2/3 would be:

= 3 9/21 + 4 14/21

= 7 23/21

= 8 2/21

Since the answer gotten is 7 2/21. This is wrong.

d. 4 5/6 + 5 5/7 = 9 10/13

First and foremost, we need to know the lowest common multiple of 6 and 7 which is 42.

Therefore, 4 5/6 + 5 5/7 would be:

= 4 35/42 + 5 30/42

= 9 65/42

= 10 23/42

This is wrong as the answer gotten is 9 10/13

Therefore, the true option is

3 3/9+7 6/11 = 10 87/99

Answer:

AB = 3.9CM ; A = 51° ; C = 39°

Step-by-step explanation:

Base BC = 4.8cm

AC = 6.2cm

Angle B = 90°

Using trigonometry, the length of AB can be obtained thus :

AB^2 = AC^2 - BC^2

AB^2 = 6.2^2 - 4.8^2

AB^2 = 38.44 - 23.04

AB^2 = 15.4

AB = sqrt(15.4)

AB = 3.92 cm

Angle A :

Using :

Sinα = opposite / hypotenus

Sinα = 4.8 / 6.2

Sinα = 0.7741935

α = sin^-1 (0.7741935)

α = 50.73

A = 51° (approximately)

Angle C ;

(A + B + C) = 180 (Sum of angles in a triangle)

51 + 90 + C = 180

141 + C = 180

C = 180 - 141

C = 39°

Answer:

x = -1.9

Step-by-step explanation:

3(x-8) = -29.7 Given

3x - 24 = -29.7 Distributive property

3x - 24 + 24 = -29.7 + 24 Addition property of equality

3x = -5.7

3x ÷ 3 = -5.7 ÷ 3 Division property of equality

x = -1.9 Answer

I hope this helped and if it did I would appreciate it if you marked me Brainliest. Thank you and have a nice day!

Answer:

uhh i think

Step-by-step explanation:

just the horizontal and the diagonal

can i have brainliest plz

Answer:

b,c

Step-by-step explanation:

hello, the answer to this is / and ----- or b and c I got this right on my test :)

Answer:

the answer is 2 remember

Step-by-step explanation:

i cant explain but the answer is 2

Answer:

put the value of x in equation you get value of y

and vice versa.

Answer:

5/7 x = 1/7

x = (1/7) / (5/7)

x = (1/7) * (7/5)

x = 7 / 35

x = 1 / 5 or .2

Step-by-step explanation:

Answer:

Option (4)

Step-by-step explanation:

Vertices of ΔABC are,

A → (-9, 3)

B → (-9, 6)

C → (0, 3)

If the given triangle is rotated 180° about the origin image triangle will have the vertices as,

Rule for the rotation,

(x, y) → (-x, -y)

A' → (9, -3)

B' → (9, -6)

C' → (0, -3)

If a point (x, y) is dilated by a scale factor of 'k',

Rule for the dilation,

(x, y) → (kx, ky)

Since, ΔA"B"C" is smaller than ΔABC,

Therefore, dilating ΔA'B'C' by a scale factor = [tex]\frac{1}{3}[/tex]

Image triangle ΔA"B"C" will be,

A" → (3, -1)

B" → (3, -2)

C" → (0, -1)

Therefore, Option (4) is the correct option.

Answer:

the guy above me is wrong the correct option is the second option

Step-by-step explanation:

i just got it wrong & it showed me the answer