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lilavasa [31]
3 years ago
11

1. If you bought a book for $12 and a CD for $9 how much money would you get back if you gave the clerk $40?

Mathematics
1 answer:
Alex3 years ago
8 0

I would get $19 back if I gave the clerk $40

An equation is an expression used to show the relationship between two or more variables and numbers.

Total money spent on book and CD = $12 + $9 = $21

The money gotten back = $40 - $21 = $19

I would get $19 back if I gave the clerk $40

Find out more on equation at: brainly.com/question/2972832

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Answer:

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Step-by-step explanation:

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3 years ago
Help please and show work
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So the radius is 7 inch which is given
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3 years ago
I need help with both of these problems. Thank you!
Dmitry [639]

Answer:

  1. 10
  2. 15ab

Step-by-step explanation:

1. The square of the binomial is ...

  (* -2m)^2 = *^2 -4m* +4m^2

Matching terms, you find ...

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Both of these equations tell you the value of * is 10.

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2. Same deal. Multiply ou the square and see what you have.

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3 0
4 years ago
4x+7(3x-3)=9-5x show work please
notka56 [123]

Answer:

x = 1

Step-by-step explanation:

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30x-21 = 9 (add 5x to each side)

30x = 30 (add 21 to each side)

x = 1 (divide each side by 30)

4 0
3 years ago
Read 2 more answers
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Answer:

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Step-by-step explanation:

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