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1. It takes Planet Folger 24 hours to complete a full rotation. It takes Planet

ID: 3114961 • Letter: 1

Question

1. It takes Planet Folger 24 hours to complete a full rotation. It takes Planet Keurig approximately 58 days, 15 hours, and 30 minutes to complete a full rotation. How many hours does it take Keurig to complete a full rotation? Show your work using the correct conversion factors.

2. A weed called the boomstar vine is known for growing at a very fast rate. It can grow up to 0.5 feet per day.

A. How fast in inches per day can the boomstar vine grow up to?

B. How fast in inches per hour can the boomstar vine grow up to?

3. Mrs. Bull spilled coffee on her computer during the first week of school! The total cost after tax to repair it is represented by 0.08(50) + 50 , where h represents the number of hours it takes to repair her computer. What part of the expression represents the amount of tax Mrs. Bull has to pay? Explain.

Explanation / Answer

1)  Planet Keurig approximately 58 days, 15 hours, and 30 minutes to complete a full rotation

therefore , converting 58 days and 30 minutes to hours

1 day = 24 hours

58 days = 58* 24 = 1392 hours

1 minute = 1/60 hours

15 minutes = 15/60 = 1/4 hours

therefore, 1392 + 15 + 1/4 = 1407.25

it takes Keurig 1407.25 hours to complete a full rotation

2) boomstar grows at 0.5 feet per day

converting feet per day to inches per day

1 feet per day = 12 inches / day

0.5 feet per day = 6 inches / day

it will grow 6 inches per day

b) converting inches per day to inches / hour

1 inches / day = 1/24 inches / hour

6 inches / day = 1/24*6 = 0.25

so it grows at 0.25 inches / hour