liarome08
liarome08 liarome08
  • 14-05-2018
  • Mathematics
contestada

The sum of two numbers that are at the ratio of 5:7 is 372. Find these numbers.

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popalabdulqayou
popalabdulqayou popalabdulqayou
  • 15-05-2018
x/y= 5/7

x+y=372

x=5/7y

5/7y+y=372


12/7y=372

y = 372(7/12)= 217


x= 155
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Pitymys Pitymys
  • 29-08-2018

The given numbers are in the ratio [tex] 5:7 [/tex]. Let the numbers be [tex] 5x [/tex] and [tex] 7x [/tex], where [tex] x [/tex] is a real number.

The sum of the numbers is [tex] 5x+7x=372 [/tex].

Solve for x,

[tex] 12x=372\\
x= \frac{372}{12}\\
x=31 [/tex].

Therefore, the numbers are,

[tex] 5*31,7*31 [/tex] or the numbers are [tex] 155,217 [/tex].


Answer Link

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