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Anna007 [38]
3 years ago
14

Nina can ride her bike 63,360 feet in 3,400 seconds, and Sophia can ride her bike 10 miles in 1 hour. What is Nina's

Mathematics
1 answer:
ollegr [7]3 years ago
5 0

Answer:

3600 seconds = 1 hour

Then

3400 seconds = 3400/3600

                       = 17/18 hours

5280 feet = 1 mile

Then

63360 feet = 63360/5280 mile

                 = 12 mile

So

Distance covered by Nina in 17/18 hours = 12 mile

Then

Distance covered by Nina in 1 hour = 12/(17/18) miles

                                                        = 12.71 miles.

Step-by-step explanation:

the speed of Nina is 12.71 miles per hour.

Speed of Sophia is 10 miles per hour. So Nina is the girl that rides at a faster speed.

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Step-by-step explanation:

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katovenus [111]

Answer:

The answer is below

Step-by-step explanation:

I have 14 Baseballs in 23 tennis balls. I bought some boxes of baseballs with 12 baseball to a box and equal amount of boxes of tennis balls with 16 balls to a box. write an expression to represent the total number of balls

Solution:

Let n represent the number of boxes of each type.

Given, the number of boxes of tennis = number of boxes of baseball, hence:

n = number of boxes of tennis = number of boxes of baseball.

Already I have 14 baseball and I bought boxes of baseballs with 12 baseball to a box, therefore:

Number of baseballs = 14 + 12n

I have 23 tennis ball and I bought boxes of tennis balls with 16 baseball to a box, therefore:

Number of tennis balls = 23 + 16n

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3 years ago
Marie is bringing bagels and cream cheese to school as a birthday snack for her class. The cost of b bagels and c packages of cr
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Answer:

30.5 is the answer

Step-by-step explanation:

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Answer:

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Step-by-step explanation:

When choosing equations to write, make sure you choose a pair that allow you to isolate a variable and solve for it.

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Ben earns an annual income of $12,800 a year. The income tax he has to pay is 15%. What is the amount of income tax in dollars a
kirill115 [55]

Answer:

$

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Explanation:

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