3. Use an algebraic equation to solve the problem,
A rectangle is 3 times as long as it is wide. The perimeter is 60 cm. Find the dimensions of the rectangle.
Round to the nearest tenth if necessary.
7.5 cm by 22.5 cm
7.5 cm by 52.5 cm
20 cm by 60 cm
15 cm by 22.5 cm
Answers
Answered by
1
Answer:
20centimeters by 60 centimeters
Answered by
5
Answer:
let 'w' represent the width, then '3w' represents the length
perimeter = 2(l+w), where 'l' and 'w' are length and width, respectively
60 = 2(w+3w) = 8w
w = 60/8 = 7.5
3*7.5 = 22.5
the width is 7.5 cm, the length is 22.5 cm
Similar questions