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Another quiz this one is much easier ....
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mhildebrandt
Posted 5/14/2019 09:59 (#7496719 - in reply to #7496600)
Subject: RE: Another quiz this one is much easier ....


Western WI
If you have to show your work.

x = # of Men
y = # of Elephants

Knees equation solved for x
2x + 4y = 100
x + 2y = 50
x = 50 - 2y

Trunk equation
3x + y = 100

Since 100 = 100 solved for x
3x + y = 2x + 4y
3x - 2x = 4y - y
x = 3y

So we can solve a value for y,
3y = 50 -2y
5y = 50
y =10

Now get value for x
x = 50 - 2y
x = 50 - 2(10)
x = 50 - 20
x = 30

30 men
10 elephants


Edited by mhildebrandt 5/14/2019 10:01
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