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Sphinxa [80]
2 years ago
11

A number is four-fifths of the other. If their sum is 180, find the numbers.

Mathematics
2 answers:
Papessa [141]2 years ago
7 0

Answer:

100 and 80

Step-by-step explanation:

let the numbers be n and \frac{4}{5} n , then their sum is

n + \frac{4}{5} n = 180 ( multiply through by 5 to clear the fraction )

5n + 4n = 900 , that is

9n = 900 ( divide both sides by 9 )

n = 100

and \frac{4}{5} × 100 = 4 × 20 = 80

the numbers are 100 and 80

Andrei [34K]2 years ago
4 0

Answer:

<h2>720 I'm sure that's answer</h2>

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