Activity 19:think deeper!
1.The amount of gasoline used by a car varies jointly as the distance travelled and the square root of the speed.Suppose a car used 25 liters on a 100 kilometer trip at 100 km\hr.About how many liters will it use on an 192 kilometer trip at 64 km\hr?
Answer:60
Step-by-step explanation
G=kd/square root of s
25=100k/sq root of 100
25=100k/10
25×10=100k
250=100k
250/100=k
5/2=k
G=5/2(192)/8
G=480/8
G=60
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