Convert Percent Decimal Percent Word Problems

At the craft store, Stanley bought a bag of yellow and purple marbles. 0.7 of the marbles were yellow. What percentage of the marbles were yellow?

Convert 0.7 to a percent.

Answer explanation

To convert a decimal to a percent,

1. move the decimal point 2 places to the right

2. add the "%" sign

(Note: insert extra "0's" as needed)

A factory made packs of gum. 0.32 of the packs contained mint-flavored gum. What percent of the packs of gum were mint-flavored?

Convert 0.32 to a percent.

Answer explanation

To convert a decimal to a percent,

1. move the decimal point 2 places to the right

2. add the "%" sign

(Note: insert extra "0's" as needed)

Matthew has a collection of miniature cars. 0.75 of the cars are metal. What percent of the cars were made of metal?

Convert 0.75 to a percent.

Answer explanation

To convert a decimal to a percent,

1. move the decimal point 2 places to the right

2. add the "%" sign

(Note: insert extra "0's" as needed)

Sam made a 2.5 profit on an investment.

Convert 2.5 to a percent.

A mortgage interest rate is 0.063.

Convert 0.063 to a percent.

Answer explanation

To convert a decimal to a percent,

1. move the decimal point 2 places to the right

2. add the "%" sign

(Note: insert extra "0's" as needed)

There are 36 carpenters in a crew. On a certain day, 29 were present. What percent showed up for work? (round to the nearest tenth)

• about 80.6%

• about 124.1%

• 36%

• 29%

The movie theater has 250 seats. 225 seats were sold for the current showing. What percent of seats are sold?

• 10%

• 20%

• 80%

• 90%

On a math test, Jeremy missed 19 points out of 100 possible. What percent of the points did he earn?

• 19%

• 81%

• 91%

• 100%

What percent of 50 is 20?

• 40%

• 25%

• 2.5%

• 4%

At the craft store, Stanley bought a bag of yellow and purple marbles. He received 60 marbles in all. 42 of the marbles were yellow. What percentage of the marbles were yellow?

• 7%

• 18

• 70%

• .7