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Mashutka [201]
3 years ago
14

Solve S=2(lw + lh + wh) for w

Mathematics
2 answers:
vovikov84 [41]3 years ago
7 0
Dividing by 2, we have S/2=lw+lh+wh. After that, we subtract lh from both sides to get S/2-lh=lw+wh. Next, we divide both sides by w to get (S/2)/w=l+h. Next, we divide by S/2 to get 1/w=(l+h)/(S/2). Lastly, we multiply by w and divide by (l+h)/(S/2)  to get w=(S/2)/(l+h)
Nikolay [14]3 years ago
3 0

Answer:

The value of the equation for w is w=\frac{S-2lh}{2l+2h}.

Step-by-step explanation:

Consider the provided equation.

S=2(lw + lh + wh)  

We need to solve the equation for w.

Distributive property:

a(b+c)=ab+ac

Use the above property.

S=2lw + 2lh + 2wh  

Subtract 2lh from both the sides.

S-2lh=2lw+ 2wh  

Take w common from the right side.

S-2lh=w(2l+ 2h)

Divide both the side by 2l+2h.

\frac{S-2lh}{2l+2h}=\frac{w(2l+ 2h)}{2l+2h}

w=\frac{S-2lh}{2l+2h}

Hence, the value of the equation for w is w=\frac{S-2lh}{2l+2h}.

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(look at image) can i get help with this?
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Answer:

m∡A = 14

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Step-by-step explanation:

Two Angles are Complementary when they add up to 90 degrees.

So 3x -7 + 11x - 1 = 90, which we can solve.

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Supplementary angles are angles that add up to 180 degrees, so the next assignment is very comparable, try it!

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3 years ago
A second-order linear differential equation for y(t) is said to be homogeneous if... every term involve either y or its derivati
swat32

Answer: Hello!

A second order differential equation has the next shape:

y''(t) + p(t)y'(t) + q(t)y(t) = g(t)

where p(t), q(t) and g(t) are functions of t, that can be constant numbers for example.

And is called homogeneus when g(t) = 0, so you have:

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3 years ago
A worker at a snack stand opened a new box of cups. The first day he used 30 cups , the second day the worker used 15 percent of
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Answer:

Step-by-step explanation:

the first day he used 30 cups

the second day he used 15% of the remaining cups...a total of 90 cups were used on second day.

so 15%of the remaining cups = 90.....so if u let x be the total cups, then the remaining cups would be x - 30

15% of (x - 30) = 90.....turn ur percent to a decimal..." of " means multiply

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lets check..

start with 630 cups....used 30 the first day....leaving u with 600 cups....15% of the remaining cups = 90.....so 15% of 600 = 90....lets check it

15%of 600 = 0.15(600) = 90...yep, thats correct....there were 630 cups in the new un-opened box

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