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2 years ago

2 mile cross country in 5/12 hour what is the speed in miles per hour

Mathematics

1 answer:

irakobra [83]2 years ago

3 0

Answer:

5/6

Step-by-step explanation:

Multiply 2 and 5/6 which gives you 5/6

Hope this helps

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Liono4ka [1.6K]

your question: 

solve 3√125=? by following steps above

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2 years ago

It is now 11:15 A.M. What time will it be in three quarters of an hour?

tangare [24]

Answer:

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Step-by-step explanation:

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1 year ago

Find the value of x such that the area of a triangle whose vertices have coordinates (6, 5), (8, 2) and (x, 11) is 15 square uni

Serjik [45]

Answer:

$x =12\ or\ -8$

Step-by-step explanation:

Given

$(x_1,y_1) = (6,5)$

$(x_2,y_2) = (8,2)$

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Required

Find x

The area is calculated as thus:

$Area = \frac{1}{2}|x_1(y_2 - y_3) + x_2(y_3 - y_1) + x_3(y_1 - y_2)|$

Substitute values

$15 = \frac{1}{2}|6*(2 - 11) + 8*(11 - 5) + x(5 - 2)|$

$15 = \frac{1}{2}|6*(-9) + 8*(6) + x(3)|$

$15 = \frac{1}{2}|-54 + 48 + 3x|$

$15 = \frac{1}{2}|-6 + 3x|$

Multiply through by 2

$2 * 15 = \frac{1}{2}|-6 + 3x| * 2$

$30 = |-6 + 3x|$

Remove absolute sign

$30 = -6 + 3x\ or\ -30 = -6 + 3x$

Add 6 to both sides

$36 = 3x\ or\ -24 = 3x$

Divide by 3

$12 = x\ or\ -8 = x$

$x =12\ or\ -8$

So, the coordinates are (-8, 11) or (12,11)

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2 years ago

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2 years ago

A jar of marbles has 27 green marbles. This represents 30% of the marbles in the jar. How many total marbles are in the jar? Ple

Brums [2.3K]

Answer:

90 i think

Step-by-step explanation:

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2 years ago

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2 mile cross country in 5/12 hour what is the speed in miles per hour ​

2 mile cross country in 5/12 hour what is the speed in miles per hour