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Chapter 2: Q. 120 (page 129)

Solve these problem statements.

a)150% of 90 is what number?

b) 6.4% of what amount is $2.88?

c) 50 is what percent of 40?

Short Answer

Expert verified

a)150% of 90 is 135.

b) 6.4% of $45 is $2.88.

c) 50 is 125 percent of 40.

Step by step solution

01

Part a) Step 1. Given problem statement 

a) 150% of 90 is what number?

02

Part a) Step 2. Calculation  

150%of90=90脳150100=135

Thus answer of part (a) is 135.

03

Part b) Step 1. Given problem statement  

6.4% of what amount is $2.88?

04

Part b) Step 2. Calculation 

Let 6.4% of x is 2.88.Then

x脳6.4100=2.88x=2.88脳1006.4x=2886.4x=45

Thus answer of part (b) is 45.

05

Part c) Step 1. Given problem statement 

50 is what percent of 40?

06

Part c) Step 2. Calculation 

Let 50 is x% of 40. Then

40脳x100=50x=50脳10040x=125

Thus answer of part (c) is 125.

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