Alberto is painting a large triangle on one wall of his bedroom. the base of the triangle is 4 ft, and the height is 8 ft. it takes 0.2 quart of paint to cover 1 square foot. how many quarts of paint does alberto use?

a. 0.8 qt
b. 1.6 qt
c. 3.2 qt
d. 6.4 qt

Option C.

Step-by-step explanation:

Step 1

Find the area of triangle

we know that

The area of a triangle is equal to

where

b is the base of triangle

h is the height of triangle

In this problem we have

substitute in the formula

Step 2

By proportion

answer: can and shows the work

step-by-step explanation:

answer: 80,000

step-by-step explanation:

the population doubles every day.

10,000*2=20,000 day 4

20,000*2=40,000 day 5

40,000*2=80,000 day 6