Percent Increase or Decrease with Equations

• y = 0.75x

• y = 0.25x

• y= 1.75x

Tags

CCSS.7.EE.B.4

CCSS.7.RP.A.2

CCSS.7.RP.A.3

Which equation shows the percent of increase from x to y?

• x = 1.25 y

• x = 0.8 y

• y = 1.25 x

• y = 0.8 x

Tags

CCSS.7.RP.A.2

CCSS.7.RP.A.3

Last week, the price of oranges at the farmer's market was $1.75 per pound. This week, the price decreased by 20%. What is the price of oranges this week?

• $2.10

• $1.40

• $1.55

• $0.35

Tags

CCSS.7.EE.B.3

CCSS.7.RP.A.3

This year, a herd of bison had a 10% decrease in population. If there are 540 bison in the herd this year, how many bison were there last year?

• 480

• 530

• 486

• 600

Tags

CCSS.7.EE.B.3

CCSS.7.NS.A.1

CCSS.7.NS.A.3

CCSS.7.RP.A.2

CCSS.7.RP.A.3

Elena's aunt bought her a $150 savings bond when she was born. When Elena was 20 years old, the bond will have earned 105% interest. How much will the bond be worth when Elena is 20 years old?

• $255

• $180

• $157.50

• $3000

Tags

CCSS.7.EE.B.3

CCSS.7.NS.A.2

CCSS.7.RP.A.3

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Tags

CCSS.7.EE.A.2

CCSS.7.EE.B.4

The number of miles driven this month was a 30% decrease of the number of miles driven last month.

Choose an equation that matches the situation.

• y= 0.7x

• y= 0.3x

• y= 1.3x

• y = 1.7x

Tags

CCSS.7.RP.A.2

CCSS.7.RP.A.3

Which situation matches the diagram?

• The amount of apples this year decreased by 15% compared with last year's amount.

• The amount of pears this year is 85% of last year's amount.

• The amount of cherries this year increased by 15% compared with last year's amount.

• The amount of oranges this year is 115% of last year's amount.

Tags

CCSS.7.RP.A.2

CCSS.7.RP.A.3

Tags

CCSS.7.NS.A.1

CCSS.7.NS.A.3

On Monday, the high was 60 degrees Fahrenheit. On Tuesday, the high was 18% more. How much did the high increase from Monday to Tuesday?

Write an equation that matches this situation.

Then answer the question.

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Tags

CCSS.7.EE.B.4

CCSS.7.RP.A.2

CCSS.7.RP.A.3