thanks if you do :]
1) the math club and the science club had fundraisers to buy supplies for a hospice. the math club spent $135 buying six cases of juice and one case of bottled water. the science club spent $110 buying four cases of juice and two cases of bottled water. how much did a case of juice cost? how much did a case of bottled water cost?
2) kay spends 250 min/week exercising. her ratio of time spent on aerobics to time spent on weight training is 3 to 2. how many minutes per week does she spend on aerobics? how many minutes per week does she spend on weight training?
3) a light plane flew from its home base to an airport 255 miles away. with a head wind, the trip took 1.7 hours. the return trip with a tail wind took 1.5 hours. find the average airspeed of the plane and the average windspeed.
thanks for helping!! :]
6j + 1w = 135
4j + 2w = 110
j = $20 juice
w = $15 water
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a + w = 250
3a - 2w = 0
a = 100 minutes aerobics
w = 150 minutes weight training
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