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yan [13]
4 years ago
13

A car and a bus set out at 2 p.M. From the same point, headed in the same direction. The speed of the car is 30mph slower than t

wice the speed of the bus. Un two hours, the car us 20 miles ahead of the bus. Find the rate of the car
Mathematics
1 answer:
Blizzard [7]4 years ago
6 0

Answer:

Car = 10 miles/hour

Bus = 20 miles/hour

Step-by-step explanation:

Here,

Let, the value of the speed of the bus = X

the value of the speed of the car = 2X - 30 (As the speed of the car is 30mph slower than twice)

According to the question,

2X - 20 = 2*(2x-30)

or, 2X - 20 = 4X-60

or, 2X = 40

x = 20

Therefore, the speed of the bus, x = 20 miles/hour

So, the speed of the car is (2*20-30) mph = (40 - 30) mph = 10 miles/hour.

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Rainbow [258]

Answer: the golfer would need to play golf 10 times per year.

Step-by-step explanation:

Let x represent the number of times per year that the golfer need to play golf for the two options to cost the​ same.

A social membership costs​ $1775 in annual dues. In​ addition, he would pay a ​$65 greens fee and a ​$25 golf cart fee every time he played. This means that the total cost of playing golf for x times with the social membership option is

1775 + (65 + 25)x

A golf membership costs​ $2425 in annual dues. With this​ membership, the golfer would only pay a ​$25 golf cart fee when he played. This means that the total cost of playing golf for x times with the golf membership option is

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65x + 25x - 25x = 2425 - 1775

65x = 650

x = 10

8 0
4 years ago
If you wish to calculate the interest on an investment with a rate of 3.58%, what number will you plug into your equation?
irina [24]
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Applying this on the given question, we will find that:
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6 0
3 years ago
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Suppose that the weights of 5400 registered female Labrador retrievers in the United States are distributed normally with a mean
kherson [118]

I believe the normal distribution is symmetrical above and below

the mean.  That tells us that in this kind of distribution, the mean

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3 years ago
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UNO [17]
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3 0
3 years ago
Helppppppppppppppppppppppppp
KatRina [158]
Your answer is 40mm

3+12+12+13
=40
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4 years ago
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