Answer:
If Manny makes the garden 15 feet long, then the width of the garden would be 9 feet wide.
Explanation:
We are given an equation: 2l + 2w = 48. We can use this equation and the information given to us to find how wide Manny's garden should be if he makes the garden 15 feet long. We can plug in 15 for l.
2(15) + 2w = 48
Multiply 15 by 2.
30 + 2w = 48
Subtract 30 from 48.
2w = 18
Now, divide 2 from 18.
w = 9
So, the width of Manny's garden should be 9 feet wide.