gabischmid7447 gabischmid7447

25-09-2018
Mathematics

contestada

The sum of two numbers is 21 the second number is 6 times the first number of

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jimrgrant1 jimrgrant1

25-09-2018

the numbers are 3 and 18

let the first number be n then the second number = 6n and the sum

sum = n + 6n = 21 thus

7n = 21

divide both sides of the equation by 7

n = [tex]\frac{21}{7}[/tex] = 3

the numbers are 3 and 6 × 3 = 18 → (3 + 18 = 21)

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NightReaper42 NightReaper42

25-09-2018

A + B = 21
6 x A = B

A + 6xA = 21
7xA=21
21/7= 3

A=3
B=18

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