Marcie solved the following inequality, and her work is shown below:

−2(x − 5) ≤ 6x + 18
−2x + 10 ≤ 6x + 18
−8x +10 ≤ 18
−8x ≤ 8
x ≤ −1

What mistake did Marcie make in solving the inequality?
A. She subtracted 6x from both sides when she should have added.
B. She subtracted 10 from both sides when she should have added.
c. She did not make a mistake.
D. When dividing by −8, she did not change the direction of the sign.

Answers

Answer 1

Answer:

d

Step-by-step explanation:

Answer 2
the right answer is D!

Related Questions

can someone please help?

Answers

The answer is b like Wht she said because she didn’t make mistakes
Its B hope that helped

Help
hgyfutdyrsdxgvbjhgytdrst

Answers

Answer:

-80 + 90 = 10

Step-by-step explanation:

-80 + 80 = 0  

0 + 10 = 90

im sorry if it does not help but here is the math

Answer : 10
Since (-) (+) = (-)

Please help me with this question!

Answers

Hi! I'm happy to help!

To solve this, we have to divide the 18 pounds, in 1/8 portions. We do this with division. To make this problem easier to solve, we need to turn it into a multiplication problem (opposite of division). To still make the problem correct, we have to take the opposite of one of our numbers. Let's take 1/8, and turn it into 8, now we have the problem:

18×8=

Now all we have to do is multiply:

18×8=

144

He can make 144 croissants!

I hope this was helpful, keep learning! :D

Answer:

He could make: 18 / [tex]\frac{1}{8}[/tex] = 144 ( Croissants)

So he could make 144 croissants

If helpful, brainliest please !

15. The floor plan of the basement of a shopping centre is drawn to a scale of 1:400.

If a supermarket has an area of 0.25 m² on the plan, find its actual area in hectares. (1 hectare = 10 000 m²)​

Answers

Answer:

4 hectares

Step-by-step explanation:

The scale factor is:

k = 1/400

Applied to the area we consider k² as the area is the product of two dimensions.

Find the actual area:

0.25 m² : (1/400)² = 0.25 m² * 160000 = 40000 m² = 40000 * 1/10000 hectares = 4 hectares

Jinny is selling bracelets for $2.50. So far, she has earned $175.00. She needs to earn more than $230.00 in order to meet her goal.

How many more bracelets, x, does she need to sell in order to reach her goal? Select the inequality that includes the fewest number of bracelets that she can sell and still reach her goal.

Answers

Answer: 25

Step-by-step explanation:

she’s earned 175 so far she needs 230. So 230-175=55, so she needs 55 more dollars. 55÷2. 50(price of each bracelet) = 25

Answer: 25. 55 ÷2 = 25


She/they earned one hundred seventy fife dollars (175$)
She needs 230 55 ÷2 = 25

Max makes three piles of cards, each consisting of only a Queen and a Jack. Lisa draws one card from each pile. What is the probability that Lisa draws two Queens and a Jack in any order? Make a tree diagram of all the choices

id at least like how you would set up the whole tree diagram

Answers

Probability is 100% because she a queen

I WILL MARK AS BRAINLIEST! Write and equation that represents the points on the table

Answers

Step-by-step explanation:

the general equation :

y = ax +b

2 = 0a+ b => b = 2

4 = -2a + b

4 = -2a +2

2a = 2-4

2a = -2

a = -1

so, y = -x + 2

Y= ab+x
So y= -2+x
Hope it helps as I am in 7th grade I can just tell answer

Help me Guess just help please

Answers

Answer:

the answer is irrational

Answer:

the answer is irrational

Find the unit rate.
91 flowers in 7 vases
flowers per vase

Answers

Answer:

hope it helps you

mark as brainlist ^_^

Step-by-step explanation:

91/7=13

Answer:

13

that's the answer

Step-by-step explanation:

91÷7=13

Find the number that makes the ratio equivalent to 1:5.
6:

Answers

Ratios are also fractions.

1:5 is the same as 1/5.

So, the question really is 1/5 = 6/what?

6/30 is the same as 1/5

So the missing number is 30.

Answer:

box = 30

Step-by-step explanation:

You could set this up very formally as a proportion. It would look like this.

1/5 = 6/x

Now all you have to do is cross multiiply.

1*x = 5 * 6

x = 30

So the answer that goes in the box is 30

Or you could just say to yourself. "The 1 was multiplied by 6. What do I have to multiply the 5 by to keep the ratio the same?"

The answer is 6

6 * 5 = 30

In higher math you are going to want to use the first method.

A triangle has the side lenths of 3, 4, and 5. Classify this triangle.

A. Scalene right triangle
B. Isosceles acute triangle
C. Equilateral triangle
D. Scalene acute triangle
E. Isosceles obtuse triangle

Answers

Scalene acute triangle

Perform the indicated operation and simplify the result.

Answers

Answer:

51ab^2/20c

Step-by-step explanation:

[tex]\frac{17a^3b^2}{15b^3c^2} *\frac{18b^4c^3}{8a^2bc^2} \\\\\frac{17*18a^3b^6c^3}{15*8a^2b^4c^4} \\\\\frac{51ab^2}{20c}[/tex]

51ab^2/20c i think I’m not for though

Answer the question in the pic pls. Don’t answer unless you are sure if your answer

Answers

Answer:

its 20

Step-by-step explanation:

20 because 10+10=20. it’s a pattern happening. in each circle you are double the first number and then doubling the second number to get your final answer.

if needed i will show the other answers

Answers

Answer:

It will take 518 calorie smoothy that she had for breakfast in the morning.

It will take her 518 Calories to burn off a 480 calorie smoothie.

Calculate The Area

Picture is provided! if you could explain how you got the answer as well​

Answers

Answer: 47.25

Step-by-step explanation:

the equation for finding the area of a triangle is base times height divided by 2

10.5(9)= 94.5

94.5/2=47.25

Answer:

47.25 sq ft is the area. no idea what you want me to do with the 4% though

Step-by-step explanation:

area for traingles = (base×hight)÷2

so your equation would he (10.5ft×9ft)÷2

10.5×9= 94.5

94.5÷2÷47.25

so the answer is 47.25 ft^2 (or simply sq ft)

Find the function f(g(x)) if f(x) = x^2 + 2x. Given g(x) = x + 1. Also find f(g(2)) = f(2).

Please provide an explanation as well. Thank you! :)

Answers

The answer to this question is 5
so for f(g(x)) the answer is the highlighted expression. I’m not so sure what the other question is asking but you can write the other stuff down and hope they give you credit :)

help me please
6(9 + 5x) = 54 +

Answers

Hi

to progress in math, you must : know by heart the rules and formulas then train.

rule : a ( b+c ) = a*b + a*c.

this propertie is call distributivity .

so we have : 6 ( 9+5X)

here : a = 6

b = 9

c = 5X

so 6 ( 9+5X) = ?

I let you have a shot. Ask in comments section if you are stuck. But try first !

Answer:

1) rearrange terms:

6(9 + 5x) = 54

6(5x + 9) = 54

2) Distribution :

6(5x + 9) = 54

30x + 54= 54

3) subtract 54 from both side:

30x + 54 = 54

30x + 54 - 54 = 54 - 54

4) Simplify: subtract the numbers

30x = 0

5) Divide both side of the equation by the same term:

30x = 0

30x√30 = 0√30

6) Simplify: cancel term that are in the both numerator and denominator

x = O√30

solution :

x = 0]

Help!

Please look at the pic and help me!

Answers

Answer:

36

Step-by-step explanation:

equilateral triangle has all sides So,

perimeter = a+b+c= 12+12+12=36

Answer: 36

Equilateral triangles are the same length on every side, since the size of 1 side was given (12) you multiply by 3 (number of sides)
12•3=36

Please help I appreciate it!

Answers

Answer:

7:1

Step-by-step explanation:

As the strawberry juice cups increase by 7, the lemon lime juice cups increase by 1.

If my answer is incorrect, pls correct me!

If you like my answer and explanation, mark me as brainliest!

-Chetan K

The answer is 7:1.

In a ratio whichever unit that is listed first will be the first number in the ratio. So, in this case the strawberry comes first then the banana so for every 7 strawberry there will be 1 banana.

Stacy, Oliver, and Jivesh each plan to put a certain amount of money into their savings accounts that earn simple interest of 6% per year. Stacy puts $550 more than Jivesh, and Oliver puts in 2 times as much as Jivesh. After a year, the amount in Stacy's account is 2 times the sum of $212 and the amount in Oliver's account. How much does each person initially put into his or her account? Who had the most money in his or her account after a year? Who had the least? Explain.

Answers

2447 so yeahhhhhhhhhhhhj

Answer:

anwser is !21

Step-by-step explanation:

solve the equation - 11 + 29 = - 2x + 4

Answers

Answer:

x = -7

Step-by-step explanation:

-11+29=-2x+4

18=-2x+4

-4       -4

14=-2x

-2   -2

-7=x

Answer: -7

Solution:-

-11 + 29 = -2x + 4
18 = -2x + 4
18 - 4 = -2x
14 = -2x
14/-2 = x
-7 = x

A car increases, then decreases, its speed. Which table could represent the speed of the car?


A. A 2-column table with 5 rows. The first column is labeled time (minutes) with entries 5, 6, 7, 8, 9. The second column is labeled speed (miles per hour) with entries 45, 43, 41, 42, 43.

B. A 2-column table with 5 rows. The first column is labeled time (minutes) with entries 5, 6, 7, 8, 9. The second column is labeled speed (miles per hour) with entries 45, 47, 49, 48, 47.

C. A 2-column table with 5 rows. The first column is labeled time (minutes) with entries 5, 6, 7, 8, 9. The second column is labeled speed (miles per hour) with entries 45, 45, 45, 43, 41.

D. A 2-column table with 5 rows. The first column is labeled time (minutes) with entries 5, 6, 7, 8, 9. The second column is labeled speed (miles per hour) with entries 45, 43, 41, 41, 41.

Answers

Answer:

The speed increases (45—>47—>49) then decreases (48—>47) over time.

Step-by-step explanation:

The speed increase {45—->47——>49

What is the value of x + y?

83,349 = 7x • 3y

Answers

Answer:

1984.5

Step-by-step explanation:

83349=21xy

xy=83349/21

xy=3969

3969/2

x+y=1984.5

1984.5 should be the answer. if i’m wrong i’m sorry

Help me help me lol please meh

Answers

Answer:

Owen is not smart

and yes D is correct also (5x10^5)

Step-by-step explanation:

Hehe :D

Yes the answer is d so you is correct

The height of a bookcase is 1.93 meters. Which expression converts this height to feet? Note: 1 foot is approximately 0.3048 meters and 1 meter is approximately 3.2808 feet.

A
1.93m×(0.3048ft1m)

B
1.93m×(3.2808ft1m)

C
1.93m×(1m0.3048ft)

D
1.93m×(1m3.2808ft)

Answers

I think it is A not 100%

The expression which converts the height of the bookcase to feet is 1.93 × (3.2808ft / 1m)

To make the conversion of meters to feets , we use dimensional analysis ;

We need to multiply the given measurement in meters by its appropriate or equivalent value in feets :

Recall :

1 meter = 3.2808 feets

Then the height of the bookcase in feets will be :

1.93 meters × 3.2808ft / 1m

Hence, the appropriate expression is : 1.93 meters × 3.2808ft / 1m

Learn more : https://brainly.com/question/18108995

Max makes three piles of cards, each consisting of only a Queen and a Jack. Lisa draws one card from each pile. What is the probability that Lisa draws two Queen and a Jack in any order? Make a tree diagram of all the choices

Answers

Answer:

3/8

Step-by-step explanation:

The probability of picking either a Queen or a Jack from each pile is always 1/2 (as there are only 2 cards).

There are only 3 ways in which Lisa can draw two Queens and a Jack:

Queen, Queen, Jack

Queen, Jack, Queen

Jack, Queen, Queen

The probability of each one happening is 1/8

This is because there is a 1/2 chance of picking a Queen or a Jack from each pile and to calculate the probability that Lisa will pick a Queen AND a Queen AND then a Jack (for example) you multiply the probabilities together:

1/2 x 1/2 x 1/2 = 1/8

This is the same for other examples and since there are only 3 ways that Lisa can draw two Queens and a Jack you multiply 1/8 by 3 (you add 1/8 together 3 times) to get 3/8

It can be represented on a tree diagram however I am not sure how I can show images/drawings on this

3/8 hope this helps

Please help me again...

Answers

A) 2 croissants


18(1/8)
=9/4
=about 2.25

Since you cannot have .25 of a thing, in this case, the croissant, the answer will be 2.
The baker can make 2 croissants

Identify square root of 3 as either rational or irrational, and approximate to the tenths place.

Answers

Answer:

It is an irrational number, [tex]\sqrt{3}[/tex] as a decimal rounded to the tenth place is 1.7

Step-by-step explanation:

All square roots are irrational numbers

Sadly I didn’t even know that

Identify the side length in Figure 1 that corresponds to the side length MQ in figure 2.
YOU CAN ONLY SELECT ONE

Answers

Answer:

the side length corresponding to mq is AE

mq is AE because the side length are corresponding to them.

Complete the point-slope equation of the line through (-4,8) and (4,4)
Use exact numbers.

y-4=

Answers

Answer:

y-4=(-1/2)(x-4)

Step-by-step explanation:

Slope=(8-4)/(-4-4)=-4/8=-1/2

The equation of the line is y-4=(-1/2)(x-4)

i use a slope calculator so im not sure if it right but here you go!
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