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Gennadij [26K]
3 years ago
6

I NEED HELP it's due today! Giving out BRAINLIEST & 30 POINTS!

Mathematics
1 answer:
liraira [26]3 years ago
4 0

Answer:

see below

Step-by-step explanation:  5 20 21 02

There are 5 areas to calculate

Top  = LW          =  (20)(17)

Bottom  = LW    =  (20)(15)

Back  = LW        =  (20)(8)

2 Triangular Ends  = One square    = LW     =  (8)(15)

Total Surface Area = (20)(17) +  (20)(15) + (20)(8) +  (8)(15)

                  = (20)(17 + 15 + 8) +  (8)(15)

                  = (20)(40) + (8)(15)

                  =  800  +  120

                  =   920 ft²

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Answer:

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Step-by-step explanation:

Given

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13. Find the surface area of each figure to the nearest tenth. Show your work.
stiv31 [10]
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7 0
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Let A, B and C be the amount machines A, B and C, respectively, produce each hour alone.

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If machine C produce 30 more drinks than B each hour, than the amount of B plus 30 will be the amount of C:

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\begin{gathered} A+B+C=520 \\ A+B=320 \\ C=B+30 \end{gathered}

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\begin{gathered} (A+B)+C=520 \\ 320+C=520 \\ C=520-320=200 \end{gathered}

Now, we can substitute C into the third equation and solve for B:

\begin{gathered} C=B+30 \\ 200=B+30 \\ B+30=200 \\ B=200-30=170 \end{gathered}

And, finally, we can substitute B into the second equation and solve for A:

\begin{gathered} A+B=320 \\ A+170=320 \\ A=320-170=150 \end{gathered}

Answers:

First box:

A+B+C=520

Second box:

A+B=320

Third box:

C=B+30

Fourth box:

150

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