Question

Find the width of a rectangle if the length is 7cm and perimeter is 35cm. (1 points)

10cm

10.5cm

7.5cm

5cm

Answer 1

ok there are 2 lengths and 2 widths
you know the length is 7
what is 7*2

Answer 2

P = 2l + 2w
35 = 2 times 7 + 2w

Answer 3

35 = 14 + 2w

Answer 4

@WhiteFangIII

Answer 5

14

Answer 6

now what is 35 - 14

Answer 7

35 - 14 = 2w

Answer 8

21 = 2w

Answer 9

w = 21/2

Answer 10

w = 10.5cm

Answer 11

35-14=21

Answer 12

ok that is the value of 2 widths
you only need one so what is 21/2

Answer 13

10.5

Answer 14

CORRECT!

Answer 15

that is your answer