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nikdorinn [45]
3 years ago
14

A car travels 279 miles in 4 1/2 hours. How many miles would the car travel in 12 hours? *

Mathematics
1 answer:
Liono4ka [1.6K]3 years ago
4 0

Answer:

744 miles in 12 hours.

Step-by-step explanation:

MATH

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Angles

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The following are the ages (years) of 5 people in a room:
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Answer:

The age of the person who entered the room is 15

Step-by-step explanation:

We are given:

Ages of 5 people in a room are:

17, 16, 15, 17, 22

A person enters room, and then the mean age of 6 people is 17.

We need to find the age of person who entered the room.

The formula to calculate mean is: Mean=\frac{Sum\:of\:all\:data\:values}{Number\:of\:data\:Values}

Now, in question we are given mean of 6 people that is 17

The age of 5 people are given while age of one person who enters the room is unknown.

Let age of person whose age is unknown= x

Now finding x using mean formula

Mean=\frac{Sum\:of\:all\:data\:values}{Number\:of\:data\:Values}\\17=\frac{17+16+ 15+ 17+ 22+x}{6}\\17=\frac{87+x}{6}\\17*6=87+x\\102=87+x\\x=102-87\\x=15

So, The value of x: x=15

Hence, the age of the person who entered the room is 15

4 0
3 years ago
A department store sells a pair of shoes with a 92% markup. If the store bought the pair of shoes for $55.25, what is the sellin
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8 0
3 years ago
Determine the value of a 10 year old car that costs $24,500 new and depreciates by 9% every year
son4ous [18]
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We can turn 9% into a decimal by moving the decimal point two places to the right.

9% = .09

24500 * .09 = 2205

Multiply the product by the amount of years you want to predict the price at.

2205 * 10 = 22050

Subtract that from the original price of the car.

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The value of a 10 year old car that costs $24500 and depreciates 9% every year will cost $2450.
7 0
3 years ago
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Gary wants to buy a video game with a selling price of 48 on sale for 50% off the sales tax in his state is 4.5% how much will G
NeTakaya

Answer:

$25.08

Step-by-step explanation:

48/2= 24(50% of 100% simplifies to 1/2)

24(0.045)=1.08

24 + 1.08 = 25.08

8 0
3 years ago
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