Exam 16: Simple Percent

What percent of 80 is 40?

To change a percent to a decimal, move the decimal ____________________ places to the left.

Give the fractional equivalent of 45%.

Give the decimal equivalent of 45%.

Percent is a way of saying "how many parts per ____________________."

Give the decimal equivalent of 4%.

Give the fractional equivalent of 4%.

An owner finds that when he uses a clamshell luggage carrier on top of his car, it cuts his gas mileage 3.1%. If he normally gets 40 mpg, what is his mileage when he uses the carrier?

If the percent has a fraction in it, first change the fraction into a(n) ____________________.

If 30 out of 75 piston pins are rejected, what percent is rejected?