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2 years ago

48 = 2(2w)+(4+2w)2. What Is w

Mathematics

1 answer:

crimeas [40]2 years ago

6 0

Hello from MrBillDoesMath!

Answer:

w = 5

Discussion:

48 = 2 (2w) + (4 + 2w)2 =>

48 = 4w + 4*2 + (2w)*2 =>

48 = 4w + 8 + 4w => as 4w + 4w = 8w

48 = 8w + 8 => subtracting 8 from each side

48 - 8 = 8w => divide both sides by 8

(48 -8 )/8 = w =>

40/8 = w =>

w = 5 =>

Check: 2(10) + ( 4 + 2*5)*2 = 20 + 14*2 = 20 + 28 = 48

Thank you,

MrB

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Read 2 more answers

An aquarium 2 m long, 1 m wide, and 1 m deep is full of water. Find the work (in J) needed to pump half of the water out of the

Nitella [24]

Answer:

$W=2452.5 J$

Step-by-step explanation:

The work is define as the integral of the force times distance. So we have:

$W=\int^{a}_{b}Fxdx$

Now, we can write the force in terms of density.

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So the work will be:

$W=\int^{0.5}_{0} 2*1000*9.81*xdx=\int^{0.5}_{0} 2*1000*9.81*xdx=\int^{0.5}_{0}19620xdx=19620(\frac{x^{2}}{2})|^{0.5}_{0}$

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I hope it helps you!

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2 years ago