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Big Ideas Math: Modeling Real Life, Grade 7

BI

Big Ideas Math: Modeling Real Life, Grade 7 View details

Chapter Review

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Exercise 16 Page 274

Let x be 24 % of 25. Write and solve a percent equation using x.

Equation: 24 % * 25=x
Solution: x=6

Practice makes perfect

Let x be 24 % of 25.

We can write this relationship as a percent equation using x. 24 % * 25=x Let's solve this equation!

24 % * 25=x

a %=a/100

24/100 * 25 = x

MoveRightFacToNum

a/c* b = a* b/c

24 * 25/100=x

Multiply

600/100=x

Calculate quotient

6=x

Rearrange equation

x=6

We have that 6 is 24 % of 25.

Subchapter links

1 Fractions, Decimals and Percents p.273

2 The Percent Proportion p.273

3 The Percent Equation p.274

4 Percents of Increase and Decrease p.274

5 Discounts and Markups p.275

6 Simple Interest p.275