MATHEMATICS MIDDLE SCHOOL

24 red marbles is 40% of ____ marbles

Answers

Answer 1

Answer: HI! The answer to that is 60 marbles.

$(24)/(60) = (4)/(10)$

Answer 2

Answer:

40% = .4 because % means hundredths. So 40% = 40/100 = .4

Let x be the total number of marbles.

Then, .4x = 24

Divide both sides by .4

x = 60 and 24 is 40% of 60 marbles

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21 is 70 % of what number?

Answers

21/x = 70/100 cross multiply and get 30

Its 30. 21----> 70%
x------> 100%. You do: 100% times 21 divided by 70%.

Since for x. show all steps and check your work

30+10x=70

Answers

x=4

Because when you add 3 and four it equals 7
First you multiply 10 x 4 and get the answer 40
So 30 + 40= 70

Hope this helps!

30 + 10x = 70
10x = 70 - 30
10x = 40
x = 40/10
x = 4

List the common multiples of 4 and 5 up to 60

Answers

It only has 20 for the common multiples of 4 and 5.

Here are the multiples of 4 up to 60:
4, 8, 12, 16, 20, 24, 28, 32, 36, 40, 44, 48, 52, 56, 60

Here are the multiples of 5 up to 60:
5, 10, 15, 20, 25, 30, 35, 40, 45, 50, 55, 60

Hope this helped!!

10.25Geno had a gift card for $40. He bought a DVD for $19.50. He spent the remaining amount on two video games. To find the cost of each video game, he used the following steps.
40.00 - 19.50 = 20.50
20.50 ÷ by 2 = 10.25
each video cost

Geno now wants to write an equation to solve the problem. He let g = cost of a video game.

Which equation can be used to find the cost of each video game?
A. 2g = 19.5
B. 2g + 40 = 19.5
C. 2g –19.5 = 40
D. 19.5 + 2g = 40

Answers

D) 19.5 + 2g = 40

thats all you're asking, right?

c. 2g-19.5=40 I think i'm right

What is 4x squared minus 3x to the 5th plus x

Answers

4x²-3x⁵+x

The only thing we can do here is simplify by finding the GCF (Greatest Common Factor) in this equation. In this case, all three terms have 'x' in common, so we're going to factor that aside:

x(4x-3x⁴+1)

After that, although it's not required, it's best to put the terms in order of their power:

x(-3x⁴+4x+1)

x(-3x⁴+4x+1) is your final answer.

Please help me . !!!!!!

Answers

b. i think if you get it wrong im sorry

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