charlottemadsen charlottemadsen

21-01-2022
Mathematics

contestada

The sum of a number, x, and twice a number, y, is 36. Their difference is 6.
Find the numbers.
A. 6 and 36
B. 15 and 21
C. 16 and 10
D. 6 and 12

Respuesta :

Yang100 Yang100

23-01-2022

Answer:

x=16, y=10. (16, 10). C)

Step-by-step explanation:

x+2y=36

x-y=6

-----------

x+2y=36

-x+y=-6

-----------------

3y=30

y=30/3

y=10

x+2(10)=36

x+20=36

x=36-20

x=16

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