Business Mathematics Quiz 1

1.The water frozen in glaciers makes up 85% of the world's fresh water supply. Write 85% as a decimal.

2.Student A completed 0.7 of his homework. What percent of his homework did Student A complete?

• 3. About 11/25 of the Earth's atmosphere is made up of nitrogen. What percent of the Earth's atmosphere is nitrogen?

4.Express each percent as a decimal 63%.

• 5. Student C spent 4/5 of her allowance on a new backpack. What percent of her allowance did she spend on the backpack?

6.Express each decimal as a percent. 0.7

• 7. Express each decimal as a percent. 0.06

8.In a survey, 20 students were asked whether they prefer pepperoni pizza or cheese pizza. Nine students said they prefer cheese pizza. What percentage of the students surveyed said they prefer cheese pizza?

9.Player A went 7/8 at the plate in last night's baseball game. Convert her batting average for last night's game into a decimal.

10.Student B ate 0.45 of his birthday cake. Convert the amount of cake Student B consumed into a fraction in simplest form.