J0rdannnn J0rdannnn
  • 23-09-2020
  • Mathematics
contestada

4. The second of two numbers is 4 times the first. Their sum is 50. Find the
larger number. *

Respuesta :

claytonhilburn12 claytonhilburn12
  • 23-09-2020
Let x = the 1st number, and y = the 2nd number.

Equation 1: The second of two numbers is 4 times the first ==> y = 4x

Equation 2: Their sum is 50 ==> x + y = 50

Substitute y = 4x into Equation 2, you get

x + 4x = 50

5x = 50

x = 50 / 5 = 10


y = 4x = 4(10) = 40
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