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Answer:
54 seconds
Step-by-step explanation:
Wanda's walking rate = 3 ft/s
Wanda's head start = 27 s
Dave's walking rate= 4.5 ft/s
Let 't' be time after Dave started walking
The distance walked by Wanda and Dave, respectively, as a function of 't' are given by:
The instant 't' at which Dave catches up to Wanda (both distances walked are equal) is:
Answer:
Ice rental at the local skating rink is $150 for 2h. Skate rental is $3 per person. The Grade 8 class went skating. All students rented skates. The total cost was $231. How many students went skating?
