Question

An object is moving at a speed of 95 kilometers every 7.5 weeks. Express this speed infeet per day. Round your answer to the nearest whole number.

Answer 1

We had an initial relation of 95 kilometers every 7.5 weeks. So we need to transform kilometers by feet and weeks by days.

Then, 1 km has 3280,84 ft, so we can calculate how many feet are 95 km as:

1 km ---------- 3280,84 ft

95 km -------- x

$x=\frac{95\cdot3280,84}{1}=311,679.8ft$

Then, every week has 7 days, so, 7.5 weeks are equivalent to:

1 week ----------- 7 days

7.5 weeks ------ y

$y=\frac{7.5\cdot7}{1}=52.5\text{ days}$

Therefore, the object moves at 311,679.8 feets every 52.5 days. It means that the speed in feet per day is:

$\text{speed}=\frac{311,679.8\text{ ft}}{52.5\text{ days}}=5,937\text{ ft/day}$