Big Ideas Chapter 4 Test Practice

Front

Write 0.21 as a percent.

Back

21%

Front

Write 186% as a mixed number in simplest form.

Back

1 43/50

Front

Barrel A and Barrel B are the same size. Barrel A is filled with a solution that is 12% ethanol. The portion of ethanol in the solution that fills Barrel B is 0.3. How many times more ethanol is in Barrel B than Barrel A?

Back

2.5 times

Front

125% of what number is 20?

Back

16

Front

A bin at a department store contains blue and red blankets. The ratio of blue blankets to red blankets is 2 to 3. What percent of the blankets in the bin are blue?

Back

40%

Front

What is the definition of a percent?

Back

A percent is a ratio expressed as a fraction of 100.

Front

How do you convert a decimal to a percent?

Back

Multiply the decimal by 100 and add a percent sign.

Front

What is a mixed number?

Back

A mixed number is a whole number combined with a fraction.

Front

What does it mean to simplify a fraction?

Back

To simplify a fraction means to reduce it to its lowest terms.

Front

What is the formula to find the percentage of a part compared to a whole?

Back

(Part/Whole) x 100 = Percentage.