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OpenStudy (anonymous):
Can't figure how to solve this!?! 30s + 40m <= 2100 600s + 900m < = 45,000
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OpenStudy (anonymous):
so, it looks like you can eliminate s
OpenStudy (anonymous):
I figured I could eliminate by multiplying the top equation by -20
OpenStudy (anonymous):
|dw:1351636999994:dw|
OpenStudy (anonymous):
so after multiplying top equation I got: -600s -800m <= -42,000?
OpenStudy (anonymous):
|dw:1351637066537:dw|
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