Question

jose wants to plant grass in his backyard. his backyard is in the shape of a rectangle. its length is 32 feet and its width is 21 feet. suppose each pack of seed covers 12 square feet. how many packs of seed will he need to cover the backyard?

Explanation:

Step1: Calculate backyard area

The area of a rectangle is $A = l\times w$, where $l = 32$ feet and $w = 21$ feet. So $A=32\times21 = 672$ square - feet.

Step2: Calculate number of seed - packs

If each pack covers 12 square feet, then the number of packs $n=\frac{A}{12}$. Substitute $A = 672$ into the formula: $n=\frac{672}{12}=56$.

Answer:

56