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Finger [1]
3 years ago
13

A=lw+wh+lh, solve for w

Mathematics
2 answers:
KIM [24]3 years ago
6 0
Subtract what is to the right of the equal sign form both side of the equation  but any way the answer is 0
antoniya [11.8K]3 years ago
5 0
      A = lw + wh + lh   Subtract lh from both sides
A - lh = lw + wh          Factor out the w
A - lh = w (l + h)          Divide both sides by (l + h)
\frac{A - lh}{l + h} = w   Switch the sides to make it easier to read
w = <span>\frac{A - lh}{l + h}</span>
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Find the values of the variables
lbvjy [14]

Answer:

Jamarion can run 4 miles in 30 minutes. What is his speed in miles per hour?

5 0
3 years ago
A rectangle with a length of 12 cm and a width of 6 cm has an area of 72 sq cm and a perimeter of 36 cm.
frozen [14]
So we should first start off by checking for the ones with the same area, which is 72sq cm

80×90=7200sq cm so A is incorrect

8×10=80sq cm so B is incorrect

3×24=72sq cm so, so far C is correct

4×14=56sq cm so D is incorrect

And because all are incorrect except C
Then C is the correct answer, just to be sure, we will check the perimeter

24+24=48
48+3=51
51+3= 54

So the perimeter is different, making C the correct answer
5 0
3 years ago
Write the equation in siope-intercept form for the line that passes through the given pointand is perpendicular to the given equ
yulyashka [42]

For a line in the form:

\begin{gathered} ax+by=c \\ The\text{ slope m is:} \\ m=-\frac{a}{b} \end{gathered}

In this case, for the line 2x + 10y = 20 with a=2 and b=10 the slope is:

\begin{gathered} m_1=-\frac{a}{b}=-\frac{2}{10} \\ m_1=-\frac{1}{5} \end{gathered}

Now, two lines are perpendiculars if the slopes satisfy the following equation:

m_2=-\frac{1}{m_1}

So, for the line we want the slope is:

\begin{gathered} m_1=-\frac{1}{5} \\ m_2=-\frac{1}{m_1}=-\frac{1}{(-\frac{1}{5})}=5 \end{gathered}

Finally, the line pass througth the point (2, 3) with slope m=5, so the equation is:

\begin{gathered} P_1=(2,3),m=5 \\ y=mx+b \\ \text{The P1 must satisfy the equation:} \\ 3=5\cdot2+b \\ b=3-10 \\ b=-7 \end{gathered}

The equation of the line is y = 5x - 7

7 0
1 year ago
-3( 2r + 7) = 3 pls help
makvit [3.9K]

Answer:

R=-4

Step-by-step explanation:

-3(2r+7)=3

-6r-21=3

-6r=24

r=-4

I hope this is correct and have a great day

6 0
3 years ago
If 11 runners are participating in a race, how many different ways can there be first and second place runners?
MrRa [10]
Only <span>first and second place runners:
</span>11*10=110 ways

Hope that helped.
6 0
4 years ago
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