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jasenka [17]
3 years ago
15

Three friends are driving to New York City and splitting the gas cost equally. At the last minute, 2 more friends joined the tri

p. The cost of gas was then evenly redistributed among all of the friends. The cost for each of the original 3 decreased by $11.00. What was the total cost of the gas, in dollars?
Mathematics
1 answer:
algol [13]3 years ago
3 0
Let x = the total cost of gas, dollars.

Originally, each of the three friends was to pay x/3 dollars each.
Finally, with two more friends added, the cost became x/5 dollars each.

The savings for each of the original three friends is $11, therefore
x/3 - x/5 = 11
(2x)/15 = 11
x = (11*15)/2 = $82.50

Answer: The total cost of gas is $82.50

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Answer: B, D, and maybe E. Check my explanation for 'E'

Step-by-step explanation:

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A:) This would be equivalent to x^2/3

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C:) This would be equivalent to x^2/3

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5 0
3 years ago
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AfilCa [17]

Answer:

4:05 PM / 16:05

Step-by-step explanation:

Time starts at 2:25.

After the ride home (15 minutes), it will be 2:40.

Then, after the bike ride it will be 3:10.

When he's finished with his homework, it will be 4:05.

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What is the volume of the cone below:<br> 5 cm<br> 12 cm<br> 13 cm
maksim [4K]

Answer:

<em>780cm cubed</em>

Step-by-step explanation:

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  • <em>so we would do 5 x 12 which is 60 </em>
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erik [133]

Answer:

First choice:

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Explanation:

<em>The probability that the first is a man's card and the second, a woman's card</em> is calculated as the product of both probabilities, taking into account the fact that the second time the number of cards  in the hat has changed.

In spite of it is said that the cards are drawn at once, since it is stated a specific order for the cards (first is a man's card and the second, a woman's card) you can model the procedure as if the cards were drawn consecutively, instead of at once.

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<u />

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<u>3. Probability that the first is a man's card and the second, a woman's card</u>

<u />

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Svet_ta [14]

Answer:

A=2πrh

Step-by-step explanation:

A=2*22/7*4*9

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