Question

Ms. Castille is about 6 feet tall. At 3:00 p.m. her shadow is 8 feet long and the tree’s shadow 20 is feet long.

Answer 1

Answer:

C

Step-by-step explanation:

8/6 = 1.33...

20/1.33... = about 15 ft

Answer 2

Answer: 15 feet.

Step-by-step explanation:

Ms. Castille is originally about 6ft tall.

But at 3:00pm, her shadow because 8 feet long,

This indicates an increase. The percentage increase will be

6 × x% = 8

6x = 8 × 100

6x = 800

x = 800 ÷ 6

x = 133.3%

This means that the shadow of the tree that is 20ft long has increased by 33.3%.

Therefore to find the original length of the tree,

100% of the tree should be x

133.33% of the tree is 20ft

Therefore,

x = (100 ÷ 133.33) × 20

x = 0.75 × 20

x = 15ft.