Question

6 from an earlier course
a. find 10% of 85.
b. find 1% of 85.
c. find 31% of 85.

Explanation:

Part a:

Step1: Convert percentage to decimal

To find 10% of 85, first convert 10% to a decimal. We know that \( 10\%=\frac{10}{100} = 0.1\).

Step2: Multiply by the number

Now multiply this decimal by 85. So, \( 0.1\times85 = 8.5\).

Part b:

Step1: Convert percentage to decimal

To find 1% of 85, first convert 1% to a decimal. We know that \( 1\%=\frac{1}{100}=0.01\).

Step2: Multiply by the number

Now multiply this decimal by 85. So, \( 0.01\times85 = 0.85\).

Part c:

Step1: Convert percentage to decimal

To find 31% of 85, first convert 31% to a decimal. We know that \( 31\%=\frac{31}{100} = 0.31\).

Step2: Multiply by the number

Now multiply this decimal by 85. So, \( 0.31\times85=(0.3 + 0.01)\times85=0.3\times85+0.01\times85 = 25.5+0.85 = 26.35\).

Answer:

s:
a. \( 8.5 \)

b. \( 0.85 \)

c. \( 26.35 \)