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aev [14]
3 years ago
7

the sum of three numbers is 131. the third number is 4 times the first. the second number is 5 more than the first. what are the

numbers
Mathematics
1 answer:
Sphinxa [80]3 years ago
4 0

Step-by-step explanation:

let the numbers are:

a, b, and c

the equation would be:

a+b+c = 131

c = 4a

b = a+5

=>

a + a+5 +4a = 131

6a +5 = 131

6a = 131-5

6a = 126

a= 126/6

a = 21

b = a+5 = 21+5

b = 26

c = 4a = 4(21)

c = 84

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