Question 1

Rewrite as a percent.
-8.3

Accepted Answer

To convert a decimal to a percent, multiply by 100. Thus, 8.3 becomes 830%.

Question 2

Rewrite as a percent.
-0.856

Accepted Answer

To convert a decimal to a percent, we move the decimal point two places to the right and add a percent sign. Therefore, 0.856 as a percent is 85.6%. The best choice is C.

Question 3

Rewrite as a percent.
-$\frac { 6 } { 7 }$

Accepted Answer

To convert the fraction $\frac{6}{7}$ to a percent, divide 6 by 7 and then multiply by 100. Doing the math, $ \frac{6}{7} \times 100 = 85.7142857...$, which rounds to $85 \frac{5}{7}\%$.

Question 4

Rewrite as a percent.
-0.82

Accepted Answer

To convert a decimal to a percent, move the decimal point two places to the right and add a percent sign. Therefore, 0.82 as a percent is 82%.

Question 5

Solve the problem.
-Mike filled his carʹs gas tank and noted that the odometer read 27,818.3. After the next filling, the odometer read 28,502.0. It took 21.5 gal to fill the tank. How many miles per gallon did the car get?

Accepted Answer

To find the miles per gallon, we need to divide the distance traveled (difference between odometer readings) by the amount of gas used (21.5 gallons).

Distance traveled = 28,502.0 - 27,818.3 = 683.7 miles

Miles per gallon = Distance traveled/Amount of gas used = 683.7/21.5 = 31.8 mpg

Therefore, the answer is (D) 31.8 mpg.

Question 6

Rewrite as a percent.
-4

Accepted Answer

To convert a whole number to a percent, you multiply by 100%. Therefore, 4 * 100% = 400%.

Question 7

Rewrite as a percent.
-$\frac { 97 } { 100 }$

Accepted Answer

To convert a fraction to a percent, simply multiply it by 100. Therefore, 97/100 as a percent is 97%. Choice D is the only one that represents 97%.

Question 8

Rewrite as a percent.
-0.018

Accepted Answer

To convert a decimal to a percent, you multiply the decimal by 100. So, 0.018 * 100 = 1.8%.

Question 9

Rewrite as a percent.
-$\frac { 1 } { 6 }$

Accepted Answer

To convert $\frac{1}{6}$ to a percent, multiply by 100: $\frac{1}{6} \times 100 = 16.666...\%$, which is $16 \frac{2}{3}\%$.

Question 10

Solve the problem.
-$\text { [ake has a cable that is }$

Accepted Answer

The problem seems to be asking for the number of pieces, and the correct answer is 5 pieces.

Question 11

Rewrite as a percent.
-$\frac { 19 } { 4 }$

Accepted Answer

To convert a fraction to a percent, you can multiply it by 100. 
$\frac { 19 } { 4 }\times 100=475\%$

Question 12

Rewrite as a percent.
-1.73

Accepted Answer

To convert a decimal to a percent, you multiply by 100. So, 1.73 * 100 = 173%.

Question 13

Rewrite as a percent.
-0.07

Accepted Answer

To convert a decimal to a percent, we move the decimal point two places to the right and add a percent sign. So, 0.07 as a percent is 7%. Therefore, the best choice is B.

Question 14

Rewrite as a percent.
-$\frac { 61 } { 100 }$

Accepted Answer

To convert a fraction to a percentage, you multiply it by 100. So, $\frac{61}{100}$ as a percentage is 61%. The best choice is D. The other choices are not correct percentages. A is 610%, which is over 100%, B is 30.5%, which is half of the correct answer, and C is 6.1%, which is only 10% of the correct answer.

Question 15

Rewrite as a percent.
-$\frac { 7 } { 11 }$

Accepted Answer

To convert the fraction $\frac{7}{11}$ to a percent, divide 7 by 11 and then multiply by 100. Doing so gives $63.6363...\%$, which rounds to $63 \frac{7}{11}\%$.

Question 16

Rewrite as a percent.
-1.828

Accepted Answer

To convert a decimal to a percent, move the decimal point two places to the right and add a percent sign. So, 1.828 as a percent is 182.8%.

Question 17

Rewrite as a percent.
-$\frac { 2 } { 5 }$

Accepted Answer

To convert a fraction to a percentage, we multiply by 100. Therefore, $\frac{2}{5}$ as a percentage is $2/5 \cdot 100\% = 40\%$.

Question 18

Rewrite as a percent.
-$\frac { 11 } { 10 }$

Accepted Answer

To convert a fraction to a percent, we multiply the fraction by 100. Therefore, $\frac { 11 }{ 10 } \times 100 = 110 \%$.

Question 19

Rewrite as a percent.
-0.2

Accepted Answer

To convert a decimal to a percent, we move the decimal two places to the right and add a percent sign. In this case, 0.2 becomes 20%.

Question 20

Rewrite as a percent.
-0.0356

Accepted Answer

To convert a decimal to a percent, multiply by 100. Thus, 0.0356 * 100 = 3.56%.

Quiz 1: Review of Real Numbers

Rewrite as a percent. -8.3

Rewrite as a percent. -0.856

Rewrite as a percent. - $\frac { 6 } { 7 }$

Rewrite as a percent. -0.82

Solve the problem. -Mike filled his carʹs gas tank and noted that the odometer read 27,818.3. After the next filling, the odometer read 28,502.0. It took 21.5 gal to fill the tank. How many miles per gallon did the car get?

Rewrite as a percent. -4

Rewrite as a percent. - $\frac { 97 } { 100 }$

Rewrite as a percent. -0.018

Rewrite as a percent. - $\frac { 1 } { 6 }$

Solve the problem. - $\text { [ake has a cable that is }$

Rewrite as a percent. - $\frac { 19 } { 4 }$

Rewrite as a percent. -1.73

Rewrite as a percent. -0.07

Rewrite as a percent. - $\frac { 61 } { 100 }$

Rewrite as a percent. - $\frac { 7 } { 11 }$

Rewrite as a percent. -1.828

Rewrite as a percent. - $\frac { 2 } { 5 }$

Rewrite as a percent. - $\frac { 11 } { 10 }$

Rewrite as a percent. -0.2

Rewrite as a percent. -0.0356