Question

Hobi mows two lawns. The first lawn is 7 feet long and 3 feet wide.
The area of the second lawn is 4 times as big but has the same
width as the first.
What is the length of the second lawn?

1. thuhuong
28 feet long
Step-by-step explanation:
we find the area of the first lawn using recent angle formula (l)(w)=a
(7)(3)
21
Now we multiply this by 4 since the second lawn is four times it
21×4
84
Now we rearrange the rectangle area formula to where length is what we are trying to find
a=(l)(w)
/w. /w
a/w=l
Now we fill in this formula
84/3=a
28
Hopes this helps