SOLVE FOR R--r/6=5 2/3 A.34 B.30 2/3 C.20 D.17/18
1 answer:
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Answer:
A.
Elena can run 3 miles per hour.
Step-by-step explanation:
Given that:
a circular running track = 1/5 mile
On this track, Elena runs completing each of the laps in 1/15 of an hour
We are to find Elena running speed.
It implies that the distance of Elena =
Time to run each lap =
Speed is the amount of distance covered in a specified period of time.
Recall that the formula for calculating speed is:
Speed = 3miles / hour
As such, Elena can run 3 miles each hour.
Answer:
The correct answer is 1.2913 x square feet.
Step-by-step explanation:
A factory builds a new warehouse that is approximately 1.28 x square feet = 128,000 square feet.
Later, they add on 1.13 x square feet = 1,130 square feet more for offices.
Thus the total size of the new building is given by 128000 + 1130 = 129130 square feet = 1.2913 x square feet.
Thus in scientific notation the total area of the factory is 1.2913 x square feet.