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

Part a) Step 1. Given problem statement

a) 150% of 90 is what number?

Part a) Step 2. Calculation

$150 % o f 90 = 90 \times \frac{150}{100} = 135$

Thus answer of part (a) is 135.

Part b) Step 1. Given problem statement

6.4% of what amount is $2.88?

Part b) Step 2. Calculation

Let 6.4% of x is 2.88.Then

$x \times \frac{6.4}{100} = 2.88 x = \frac{2.88 \times 100}{6.4} x = \frac{288}{6.4} x = 45$

Thus answer of part (b) is 45.

Part c) Step 1. Given problem statement

50 is what percent of 40?

Part c) Step 2. Calculation

Let 50 is x% of 40. Then

$40 \times \frac{x}{100} = 50 x = \frac{50 \times 100}{40} x = 125$

Thus answer of part (c) is 125.

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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

Step by step solution

Part a) Step 1. Given problem statement

Part a) Step 2. Calculation

Part b) Step 1. Given problem statement

Part b) Step 2. Calculation

Part c) Step 1. Given problem statement

Part c) Step 2. Calculation

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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

Step by step solution

Part a) Step 1. Given problem statement

Part a) Step 2. Calculation

Part b) Step 1. Given problem statement

Part b) Step 2. Calculation

Part c) Step 1. Given problem statement

Part c) Step 2. Calculation

One App. One Place for Learning.

Most popular questions from this chapter

Recommended explanations on Math Textbooks

Decision Maths

Statistics

Mechanics Maths

Applied Mathematics

Discrete Mathematics

Calculus

Study anywhere. Anytime. Across all devices.

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?