6.
The length of the rectangle shown is 3x cm. Its width is (4x + 3) cm. Its perimeter is 90 cm. Write an equation in terms of x and solve it to find the value of x.
Answers
Answered by
2
Answer:
6
Step-by-step explanation:
Length= 3x
Breadth= 4x+3
2(l+b)= 90
— 2{(3x)+(4x+3)}= 90
2(7x+3)= 90
7x+3= 45
7x= 42
x= 42/7= 6
Similar questions