Percent Proportions - Advanced Math 6

Front

What is a percent?

Back

A percent is a ratio expressed as a fraction of 100. It represents a part of a whole.

Front

How do you calculate the percent of a quantity?

Back

To calculate the percent of a quantity, divide the part by the whole and multiply by 100. Formula: (Part/Whole) x 100.

Front

What is the formula to find the whole when given a part and a percent?

Back

Whole = Part / (Percent/100).

Front

If 90% of seats are sold in a theater with 250 seats, how many seats are sold?

Back

225 seats are sold.

Front

How do you find 15% of a number?

Back

Multiply the number by 0.15.

Front

If Ben earns $12,800 a year and 15% is taken out for taxes, how much is taken out?

Back

$1,920 is taken out for taxes.

Front

What does it mean to buy something at a percent of its original price?

Back

It means to pay a fraction of the original price, calculated by multiplying the original price by the percent (as a decimal).

Front

If a car's original price is $7,200 and it is bought for 65% of that price, how much is paid?

Back

$4,680 is paid for the car.

Front

How do you calculate the weight of a substance in a mixture?

Back

Multiply the total weight by the percent of the substance (as a decimal).

Front

If a metal bar weighs 8.15 ounces and 93% is silver, how much silver is in the bar?

Back

About 7.6 ounces of silver are in the bar.