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elena55 [62]
3 years ago
13

A car covers 635km by going for 4 hours at a certain speed,then for 3 hours at 4km/h faster,and then for 2 hours at 5 km/h slowe

r.find the first speed.
Mathematics
1 answer:
mezya [45]3 years ago
4 0

First speed is 158.75 km/hr

Step-by-step explanation:

  • Step 1: Given the car travels 635 km in 4 hours. Find speed of the car.

Use formula for Speed = Distance/Time

⇒ Speed = 635/4 = 158.75 km/hr

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Gabriel is designing equally sized horse stalls that are each in the shape of a rectangular prism. Each stall must be 9 feet hig
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Answer:

The equation is 9x(x+2)=1,080.

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Let x ft be the widht of the stall, then the length of the stall is x+2 ft. If each stall must be 9 ft high, then the volume of the stall is V=x\cdot (x+2)\cdot 9=9x(x+2)\ ft^3.

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