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xxTIMURxx [149]

2 years ago

15

simplify A + B + 2A + 3B show how you got your work and the numbers please please show how you figure out the numbers and how to

do this I have several more questions if you can help me with

2 answers:

KengaRu [80]2 years ago

7 0

$a + b + 2a + 3b \\ a + 2a = 3a \\ b + 3b = 4b \\ \\ 3a + 4b$

ehidna [41]2 years ago

4 0

A+2a=3a because a/b=1

B+3b=4b

Then you have 4b and 3a so its

3a+4b

A always comes before b

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A storage shed is to be built in the shape of a (closed) box with a square base. It is to have a volume of 150 cubic feet. The c

Alenkinab [10]

Answer:

$C(s) = 6s^2 + \dfrac{1500}{s}\\\text{where s is the side of base.}$

Step-by-step explanation:

We are given the following in the question:

A storage shed is to be built in the shape of a (closed) box with a square base.

Volume = 150 cubic feet

Let s be the edge of square base and h be the height.

Volume of cuboid =

$l\times b\times h$

where l is the length, b is the base and h is the height.

Volume of box =

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Area of base =

$\text{side}\times \text{side} = s^2$

Cost of concrete for the base = $4

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Area of roof =

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Cost of material for the roof = $2

Cost of roof ($) = $2s^2$

Area of 4 walls =

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Cost of material for the side = $2.50

Cost of material of side($) =

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= Cost of base + Cost of 4 sides + Cost of roof

$C(s) = 4s^2 + \dfrac{1500}{s} + 2s^2\\\\C(s) = 6s^2 + \dfrac{1500}{s}$

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Alika [10]

Answer:

$\sum_{n=1}^{5} 6(2^{n-1})$

Step-by-step explanation:

6 + 12 + 24 + 48 + 96 =

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saul85 [17]

Answer:

Option D, 32

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2 years ago