please help!!! most helpful and detailed (simple) explanation or answer gets best answer (10 points!!)!! :]
1) 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?
2) 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.
always with ratio
u add both 3+2=5
then
250/5 = 50
for aerobics 3x50=150
for weights 2x50=100
2)
same thing here 1.7+1.5 = 3.2
255/3.2 = 79.6875
1.7x79.6875=135.46875
1.5x79.6875=119.53125
i know the first one i think and it is 150 min aerobics and 190min for weight training and i got it by puting 3 to 2 into probility and the probility is 3/5 and than since it out of a hundered you had to double it than split 60 in half than 100min for weight training
the next one you it the same but with differnt numbers pretty much
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