Question

1. a type of bamboo holds a Guinness world record for the fastest growing plant.is can grow 91cm a day. how fast in inches per hour can the bamboo grow
2. If it takes earth 24 hours to complete a full rotation it takes saturn approximately 10 hours, 39 minutes and 24 seconds to complete a full rotation How many minutes does it take Saturn to complete a full rotation?

3. the total cost after tax to repair Kimber’s cracked phone is represented by 00.4(30h)+30h Where h represents the number of hours it takes to repair Kimber’s phone what part of the expression represents the amount of tax she must pay. Make sure you answer is a complete sentence.

Answer 1

1-

Given length is 91 cm

1 cm = 0.3937 inch

so, 91 cm = 91* 0.3937 = 35.826 inches

1 day = 24 hours

In 24 hours the bamboo grows = 35.826 inches

In one hour it will grow = $\frac{35.826}{24}$

= 1.492 inches per hour. Hence the bamboo grows 1.492 inches per hour.

2-

We have to convert hours and seconds in minutes.

1 hour = 60 minutes

so 10 hours = 60 * 10 = 600 minutes.

60 seconds = 1 minute

so 24 seconds = $\frac{24}{60}$ = 0.4 minutes.

Now we have been given the total time as 10 hours, 39 minutes and 24 seconds

So adding all values in minutes, we get

600 + 39 + 0.4 = 639.4 minutes

So Saturn takes 639.4 minutes to complete one rotation

3-

Given equation is 0.4(30h)+30h

0.4(30h) represents the amount of tax Kimberly has to pay.