Claire is making a new cushion covers for a chair. There are three sizes of cushions of the chair. what is the surface area of t
he arm rest cushion?
2 answers:
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Answer:
30 mins
Step-by-step explanation:
<em>speed = distance/ time </em>
speed of car A
= 20/ 12 km/ min
= 5/ 3 km/ min
also, speed of car A = speed of car B
speed of car B = 5/ 3 km/ min = 50km / time taken (in mins)
=> t = 30 mins