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2 years ago

The Healy family drove 192 miles in 4.5 hours. How many miles could they drive at this rate in 3 hours

1 answer:

4 0

Let’s find this out by using proportions! it is very easy to do

192 miles/4.5 hours = m/3 hours

192 * 3 = 4.5 * m cross multiply

576 = 4.5m

576 / 4.5 = m divide both sides by 4.5

128 = m

your answer is 128 miles! hope this helped, blessings! x

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Eva8 [605]

The answer is right

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2 years ago

A bag of marbles has 3 red, 4 blue, and 5 white marbles in it. What is the probability of reaching in and selecting a blue marbl

goblinko [34]

Answer:

$P(B)=\frac{1}{3}$

Step-by-step explanation:

The number of red marbles in the bag is; $n(R)=3$ .

The number of blue marbles in the bag is; $n(B)=4$ .

The number of white marbles in the bag is; $n(W)=5$ .

The total number of marbles in the bag is: $n(S)=3+4+5=12$ .

The probability of selecting a blue marble is $P(B)=\frac{n(B)}{n(S)}$

We substitute the given information to obtain:

$P(B)=\frac{4}{12}$

We simplify to obtain:

$P(B)=\frac{1}{3}$

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2 years ago

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sdas [7]

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2 years ago

Determine x when y =144?

Eddi Din [679]

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3 years ago

Makenzie graphs the line y= 2x + 13. Which statement is true?

slamgirl [31]

Answer:

The point (-4,5) is on the line

Step-by-step explanation:

You can replace the x and y values to determine if it is a true statement

First Statement

5= 2(-4)+13 -> 5= -8+13 -> 5=5 true

Second Statement

-4=2(5)+13 -> -4= 10+13 -> -4 ≠ 23 false

You can automatically eliminate the next two answers because you already found that the first statement is true and because you can find points using an equation.

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2 years ago