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August 21, 2014

# Homework Help: MATH

Posted by Emily on Friday, October 28, 2011 at 11:05am.

22. Your class hopes to collect at least 325 cans of food for the annual food drive. There were 135 cans donated the first week and 89 more the second week.

help plz i HATE math
a. Write an inequality that describes this situation. Let c represent the number of cans of food that must be collected by the end of the third week for your class to meet or surpass your goal.

b. How many cans are needed to meet or surpass your goal?

• MATH - Jai, Friday, October 28, 2011 at 11:30am

A.
the sum of the all number of cans collected must be greater than or equal to 325:
135 + 89 + c >= 325
*note that >= is "greater than or equal to" symbol here. but the symbol must be really a greater than symbol with an underline.

B. we just solve for c.
224 + c >= 325
c >= 325 - 224
c >= 101

thus they need 101 cans to meet their goal.

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