3 years ago

What is the answer for 3(x-2)+6x=3x-2+6x

Mathematics

1 answer:

Rudiy273 years ago

8 0

I think this attachment will help you

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5a-3b+c+(4-5b-c) ayuda

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What is the standard form of (4,4), perpendicular to y = -4/9x

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Y=9/4x-5 is the standard form.

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Brianna wants to save the $250 she earned by babysitting over the summer. She's trying to decide which

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Step-by-step explanation:

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2 years ago

It takes 32 hours for a motorboat moving downriver to get from pier A to pier B. The return journey takes 48 hours. How long doe

lina2011 [118]

Answer:

Time taken by the un powered raft to cover this distance is T = 192.12 hr

Step-by-step explanation:

Let speed of boat = u $\frac{km}{hr}$

Speed of current = v $\frac{km}{hr}$

Let distance between A & B = 100 km

Time taken in downstream = 32 hours

$32 = \frac{100}{u +v}$

$u + v = \frac{100}{32}$

u + v = 3.125 ------ (1)

Time taken in upstream = 48 hours

$48 = \frac{100}{u -v}$

$u -v = \frac{100}{48}$

u - v = 2.084 ------- (2)

By solving equation (1) & (2)

u = 2.6045 $\frac{km}{hr}$

v = 0.5205 $\frac{km}{hr}$

Now the time taken by the un powered raft to cover this distance

$T = \frac{100}{v}$

Because un powered raft travel with the speed of the current.

$T = \frac{100}{0.5205}$

T = 192.12 hr

Therefore the time taken by the un powered raft to cover this distance is

T = 192.12 hr

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3 years ago

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What are the factors of the expression (y-2)(x+3)

ivanzaharov [21]

(y-x) (2+3)= (yx)(5)
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3 years ago

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