isaiahklopfer97 isaiahklopfer97

10-02-2017
Mathematics

contestada

The length and width of a rectanlge are in the ratio 5:3. The perimeter of the rectanlge is 32 cm. What is the length and width?

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trombonebookworm trombonebookworm

10-02-2017

Set up a system:
x/y=5/3
2x+2y=32

Solve:
y=5/3x

2x+2(5/3x)=32
2x+10/3x=32
16/3x=32
x=6

Substitute 6 back in:

y=5/3(6)=10

The length is 10cm, the width is 6cm

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