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Sphinxa [80]
2 years ago
10

A plane can fly 1440 miles in the same time as it takes a car to go 400 miles. If the car travels 130 mph

Mathematics
1 answer:
patriot [66]2 years ago
8 0

Answer:

The speed will be "144 mph".

Step-by-step explanation:

Let the speed of the plane be "x mph".

then,

The car's speed be "x-130 mph".

According to the question,

⇒ \frac{1440}{x} =\frac{400}{x-130}

By applying cross-multiplication, we get

⇒    1440(x-130)=400x

⇒ 1440x-187200=400x

⇒    1440x-140x=187200

⇒                1300x=187200

⇒                       x=\frac{187200}{1300}

⇒                          =144 \ mph

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6:20=9:x=x:10=x:60=16:x=12:x
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6:20=9:30=3:10=18:60=16:160/3=12:40

Step-by-step explanation:

The question requires you to find value of x in the ratios given;

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The firth pair after replacing value of x=160/3 will be;

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⇒⇒ 16: 160/3 = 12: 40

Learn More

Ratios and proportions :brainly.com/question/9512748

Keywords : ratio, value of x, proportion

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