gcsb4fa6s2 gcsb4fa6s2

26-02-2021
Mathematics

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The perimeter of a triangle is 53 meters. Side a is three less than side b and side c is twice side b.

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thebecks thebecks

26-02-2021

Answer:

a = 11

b = 14

c = 28

Step-by-step explanation:

a+b+c = 53

b-3 = a

c = 2b

substitute for a and c

(b-3)+b+(2b) = 53

reduce

4b-3 = 53

add 3 to each side

4b = 56

divide both sides by 4

b = 14

a = 14-2 = 11

c = 2(14) = 28

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