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natka813 [3]
3 years ago
9

Solve for the variable. Type the numeric answer only in the box given. -2 (3 + 5y - 10) = 34. plz help

Mathematics
1 answer:
Ahat [919]3 years ago
7 0

Answer:

y=-2

Step-by-step explanation:

-2(3)-2(5y)-2(-10)=34

-6-10y+20=34

-10y=34+6-20

-10y=20

y=-2

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Find the lateral and total surface area of the prism.
tia_tia [17]

Lateral surface area of the prism = 920 in²

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Solution:

Length of the prism = 13 in

Width of the prism = 10 in

Height of the prism = 20 in

Lateral surface area of the prism = 2(l + w)h

                                                       = 2(13 + 10) × 20

                                                       = 2(23) × 20

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Total surface area of the prism  = Lateral area + 2lw

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Hence Lateral surface area of the prism = 920 in²

Total surface area of the prism  = 1180 in²

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