Name:    Warmups Topic 11.1

Multiple Choice
Identify the letter of the choice that best completes the statement or answers the question.

1.

The Marriott family bought a new apartment three years ago for \$65,000. The apartment is now worth \$86,515. Assuming a steady rate of growth, what was the yearly rate of appreciation?
 a. 8% c. 12% b. 10% d. 14%

2.

In 1928, when high jump was first introduced as a women’s sport at the Olympic Games, the winning jump for women was 70.0 inches, while the winning jump for men was 86.5 inches. Since then, the winning jump for women has increased by about 0.48% per year, while the winning jump for men has increased at a slower rate, 0.4%. If these rates continue, when will the winning jump for women be higher than the winning jump for men?
 a. after 110 years c. after 265 years b. after 248 years d. after 270 years

3.

Kronos Industries bought a desktop for \$3000. It is expected to depreciate at a rate of 10% per year. What will the value of the desktop be in 4 years? Round to the nearest integer.
 a. \$1968 c. \$2700 b. \$2057 d. \$4391

4.

Merlin Industries bought a laptop for \$2100. It is expected to depreciate at a rate of 14% per year. What will the value of the laptop be in 5 years?
 a. \$912 c. \$1806 b. \$988 d. \$4043

5.

An anthropologist finds there is so little Carbon-14 remaining in a prehistoric bone that instruments cannot measure it. This means there is less than 0.2% of the amount of Carbon-14 the bones would have contained when the person was alive. How long ago did the person die? (The constant for Carbon-14 is 0.00012.)
 a. 13,411 years c. 45,020 years b. 22,491 years d. 51,788 years