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IM 7.6.12 Practice: Solving Problems about Percent Increase or Decrease

A backpack normally costs $25 but it is on sale for $21. What percentage is the discount?

Find each product.

Select all expressions that show  increased by 35%.

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  • A
  • B
  • C
  • D
  • E
  • F
Comprova la meva reposta (3)

Complete each sentence with the word discount, deposit, or withdrawal.

Clare took $20 out of her bank account. She made a _____.

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  • A
  • B
  • C
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Kiran used a coupon when he bought a pair of shoes. He got a _____.

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  • A
  • B
  • C
Comprova la meva reposta (3)

Priya put $20 into her bank account. She made a _____.

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  • A
  • B
  • C
Comprova la meva reposta (3)

Lin paid less than usual for a pack of gum because it was on sale. She got a _____.

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  • A
  • B
  • C
Comprova la meva reposta (3)

The initial freshman class at a college is 10% smaller than last year’s class. But then during the first week of classes, 20 more students enroll. There are then 830 students in the freshman class.

Which equation matches this story?

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  • A
  • B
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Solve the equation you chose, and explain what the solution means in the situation.

A store reduces the price of a computer by $20. Then during a 10% off sale, a customer pays $830.

Which equation matches this story?

Marqueu on calgui
  • A
  • B
Comprova la meva reposta (3)

Solve the equation you chose, and explain what the solution means in the situation.

In the problems above, why does one equation have parentheses and the other doesn't?