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babunello [35]
3 years ago
7

Can someone help me with this and explain please

Mathematics
1 answer:
Artyom0805 [142]3 years ago
6 0
X/y = 2 so x = 2y
z/x = 4 so z = 4x but x = 2y so z = 4(2y) = 8y

now you have
x = 2y, z = 8y 

x + y + z          2y  + y + 8y             11y              11
------------ = -----------------------= ------------- =   ----------- = 5 1/2
     x                          2y                  2y                  2

answer
C. 5 1/2
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Answer:

Let's solve for x.

4x+5y=7

Step 1: Add -5y to both sides.

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Step-by-step explanation:

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