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Chapter 2: Q. 2.40 (page 121)

Translate and solve: 鈸� What number is 55%of 60? 鈸�8.5%of what amount is $3.06? 鈸�126 is what percent of72?

Short Answer

Expert verified

a). 33is the number

b). $36is the amount

c).175%

Step by step solution

01

Part (a). Step 1. Form the equation.

Question states, " What number is 55%of60?"

Let the number is 'n'

Equation for the statement will be,

n=55100脳60

n=33

02

Part (b). Step 1. Form the equation.

Question states that, "8.5% of what amount is $3.06?"

Let the amount is $n.

Equation for the statement will be,

8.5100脳n=3.06

0.085n=3.06

03

Part (b). Step 2. Divide the equation by 0.085,

0.085n0.085=3.060.085

n=36

04

Part (c). Step 1. Form the equation.

Question is, "126 is what percent of 72?"

Let the percent is n%

Equation for the question will be,

n100脳72=126

0.72n=126

05

Part (c). Step 2. Divide the equation by 0.72,

0.72n0.72=1260.72

n=175%

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