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Math Problem of the Day- Aug 12, 2016

wct097

NPD Club President 2021-2022
Staff member
Super Moderator
VIP
x+y=8
a-b=6
x+a=13
y+b=8

x+y = y+b
x=b

x+y=8
x+a=13
a-x=6
a=x+6

x+y=8
2x+6=13
2x=13-6
2x=7
x=7/2
b=7/2
y= 8-7/2
y=9/2
a=19/2

7/2, 9/2
19/2, 7/2
 

Ardvark

Well-known member
I saw 8 on top row and 8 at bottom of second column and knew that A and D had to be the same and exactly in the middle of the difference between 13 and 6.
So half of 7 is 3.5. Plugged it into the spots got 4.5 and 9.5.
 

FinlayZJ

Doing hoodrat things
VIP
I saw 8 on top row and 8 at bottom of second column and knew that A and D had to be the same and exactly in the middle of the difference between 13 and 6.
So half of 7 is 3.5. Plugged it into the spots got 4.5 and 9.5.
Not common core complaint. FAIL.
 

Ardvark

Well-known member
I can not for the life of me do common core. I am not looking forward to math homework starting again in a couple weeks
 
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