Posted by Kiana on Monday, September 27, 2010 at 4:41pm.
I spent $40.00 on a sweater and a shirt. The sweater cost $12.00 more than the shirt. How do I figure this out. I thought the answer was $28.00 but that is not right

4th grade  Ms. Sue, Monday, September 27, 2010 at 4:48pm
40  12 = 28
28/2 = $14 cost of shirt
14 + 12 = $26 cost of sweater

4th grade  Jen, Monday, September 27, 2010 at 6:15pm
x + y = 40
x = y + 12
Use substitution to plug the second equation into the first.
y + y + 12 = 40
2y + 12 = 40
2y = 28
y= 14
Plug y = 14 back into either top equation, x = 26

4th grade  mimi, Friday, October 15, 2010 at 1:37am
two eqtns....X+12=Y;AND X+Y=40......fromX+12=y thenX+X+12=40;2X+12=40 THEREFORE X=14....IF X=14 AND X+Y=40,THEN Y=26ANS...26DOLLARS FOR SWEATER.
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