Table

The circumference of the rectangle table is 420 cm. Length to width ratio is 5:2 . Calculate table dimensions and dimensions reduced in the ratio of 3:5

Correct answer:

a =  150 cm
b =  60 cm
c =  90 cm
d =  36 cm

Step-by-step explanation:


2(a+b)=420
2a=5b

2·(a+b)=420
2·a=5·b

2a+2b = 420
2a-5b = 0

Row 2 - Row 1 → Row 2
2a+2b = 420
-7b = -420


b = -420/-7 = 60
a = 420-2b/2 = 420-2 · 60/2 = 150

a = 150
b = 60

Our linear equations calculator calculates it.
k=3/5=53=0.6 c=k a=0.6 150=90 cm
d=k b=0.6 60=36 cm



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