Respuesta :
If the rectangle has a length of 3.6 inches, and a perimeter of 16.8
inches, the width will be 4.8, which we can work out by taking away the
amount we already know from the perimeter, which will of course be 3.6 x
2 (7.2) to get 9.6. This is the combined length of the remaining widths
within the perimeter added together, so to find the width along, you
simply need need to halve 9.6 to get 4.8.
Answer: 4.8
Step-by-step explanation:
An expression you can use to solve this is- 2(3.6) + 2w = 16.8
All you have to do is solve for w(you might need a calculator):
2(3.6) + 2w = 16.8
7.2 + 2w = 16.8---- multiply in the parenthesis
2w = 9.6------ subtract 7.2 from both sides
w = 4.8
Now to check:
2(3.6) + 2(4.8) = 16.8
7.2 + 9.60 = 16.8 ----- multiply in the parenthesis
16.8 = 16.8 ---------- add
The answer 4.8 is correct. (I also know 'cause I took the test)