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Anuta_ua [19.1K]
3 years ago
11

At the park there is a pool shaped like a circle with diameter 24 yd. A ring-shaped path goes around the pool. Its width is 5 yd

.
yd
24 yd
We are going to give a new layer of coating to the path. If one gallon of coating can cover 8 yd?, how many gallons of coating do we need? Note that coating
comes only by the gallon, so the number of gallons must be a whole number. (Use the value 3.14 for 1.)
Mathematics
1 answer:
Irina18 [472]3 years ago
5 0

Answer:106 gal

Step-by-step explanation:

step 1

Find the area of the path

we know that

The area of the path is given by the formula

where

r_2 is the radius of the pool plus the width of the path

r_1 is the radius of the pool

we have

---> the radius is half the diameter

substitute

assume

step 2

Find the gallons of coating needed

Divide the area of the path by 5

so

Round up

therefore

106 gal

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