Question

Leroy uses 20 pounds of fertilizer to cover 4,000 square feet of his lawn and 50 pounds to cover 10,000 square feet. How much does he need to cover his entire yard which has an area of 26,400 square feet?

A. 132 pounds
B. 70 pounds
C. 130 pounds
D. 200 pounds
​

Answer 1

A. 132 pounds

Explanation:

For 4000 square feet, 20 pounds needed

for 10000 square feet, 50 pounds needed

By taking the ratios,

`(4000)/(20)` =
`(10000)/(50)`=
`(26400)/(x)` =
`200`

or, 200x=26400

or, x=132 pounds

Hope, this helps you.