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contestada

Find three consecutive even integers such that the sum of twice the smallest number and three times the largest is 42

Respuesta :

jclm

Answer:

6, 8 and 10

Step-by-step explanation:

2x+3(x+4)=42

5x+12=42

5x=30

x=6

The numbers are 6, 8 and 10.

We are required to find three consecutive even integers such that the sum of twice the smallest number and three times the largest is 42.

let

the smallest even integer = x

the smallest even integer = xMiddle even integer = x + 2

the smallest even integer = xMiddle even integer = x + 2Largest even integer = x + 4

Sum of twice the smallest number and three times the largest is 42

2(x) + 3(x + 4) = 42

open parenthesis

2x + 3x + 12 = 42

collect like terms

5x = 42 - 12

5x = 30

divide both sides by 5

x = 30 / 5

x = 6

Therefore, the three consecutive numbers are:

the smallest even integer = x

= 6

Middle even integer = x + 2

= 6 + 2

= 8

Largest even integer = x + 4

= 6 + 4

= 10

The numbers are 6, 8, 10

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