Big Ideas Chapter 4 Test Practice

Front

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

Back

Percentage = (Part / Whole) * 100

Front

If 30 out of 120 customers are offered free games, what percent of customers are not offered free games?

Back

75% of the customers are not offered free games.

Front

How do you convert a percentage to a decimal?

Back

To convert a percentage to a decimal, divide the percentage by 100.

Front

What is 46% as a decimal?

Back

0.46

Front

How do you convert a fraction to a percentage?

Back

To convert a fraction to a percentage, divide the numerator by the denominator and multiply by 100.

Front

What is 1/2 as a percent?

Back

50%.

Front

How do you express a percentage greater than 100% as a mixed number?

Back

To express a percentage greater than 100% as a mixed number, divide the percentage by 100 and express the remainder as a fraction.

Front

What is 186% as a mixed number in simplest form?

Back

1 43/50.

Front

If Barrel A has a solution that is 12% ethanol, how do you find the amount of ethanol in a given volume?

Back

Multiply the volume of the solution by 0.12 (12%).

Front

If Barrel B contains 0.3 ethanol, how do you compare it to Barrel A's ethanol content?

Back

Divide the ethanol content in Barrel B by the ethanol content in Barrel A.