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sweet-ann [11.9K]
3 years ago
10

The train traveled at a speed of 90 miles per hour for 3 hours then slowed down to 72 miles per hour for the next 1 1/2 hours. W

hat is the total number of miles the train traveled?
Mathematics
1 answer:
Viefleur [7K]3 years ago
4 0

Answer:

378 miles

Step-by-step explanation:

<u>Remember that (rate)(distance) = time</u>

The train is going 90 mph for 3 hours. That's 270 miles in 3 hours.

Then you would multiply 72 (mph) by 1 1/2 (hours) and get 108 miles traveled in 1 1/2 hours.

Add those together and you get 378.

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Linda owns 4 shares of a certain stock. Yesterday the total value of her shares went down by 32 dollars. What was the change in
Annette [7]

Answer:

The value of each share decreased by $8.

Step-by-step explanation:

Number of shares of a certain stock Linda owned = 4

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So find the change in value of each share.

Solution:

Let the total value of each share in dollars be = x

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So, new value of 4 shares = 4x-32

New value of each share = \frac{New\ value\ of\ total\ shares}{4}

⇒ \frac{4x-32}{4}

Splitting the denominators.

⇒ \frac{4x{{4}-\frac{32}}{4}

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New value of each share in dollars = x-8

Thus, we can see that the value of each share decreased by $8.

6 0
3 years ago
The numbers 1-4 are each written on an index card. The 4 cards are put into a bag and 2 of them are drawn at random. What is the
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Answer:

Step-by-step explanation:

Write a list of all possible outcomes

1-2

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2-1

2-3

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I count 4

So the probability is 4/12 = 1/3, just as you said.

Is there an easier way?

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answer: 4 ways make success. The total number of ways is 12.

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