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3 years ago

Help been trying to figure it out for a while and when you answer please tell me how to do it and please explain

Mathematics

2 answers:

SVETLANKA909090 [29]3 years ago

6 0

Answer:

Jeyden will need 128 square feet of cardboard.

Step-by-step explanation:

Notice that you need to calculate the area of the figure. Now, the figure is formed by four equal rectangles and two equal squares. If you are not convinced of this fact, just check the shape of any box.

So, in order to calculate the total area $A$ , we only need to calculate the area of one rectangle $A_r$ and the area of one of the squares $A_s$ . Because of the deductions of the above paragraph

$A= 4A_r + 2A_s$ .

From the figure we already know that the length of the rectangles is 6 ft. Also, notice that the height of the rectangles is given: 4ft. Then, $A_r = 6\times 4 =24$ square feet. Now, the squares have length 4 ft, so $A_s =4^ 2=16$ square feet.

Thus,

$A= 4A_r + 2A_s = 4\times 24+2\times 16 = 96 + 32=128$ square feet.

FrozenT [24]3 years ago

4 0

If you add 4+4+4+4+6+6 you will get 24

So you will need 24 fr

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dybincka [34]

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Step-by-step explanation:

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Step 1 of 2

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Step 2 of 2

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1 year ago

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<span>Part A: Solve A = (x + 23) for x.

A = x + 23

=> A - 23 = x + 23 - 23

=> A - 23 = x

=> x = A - 23 <------- answer

Part B: Determine the value of x when A = 108

Replace the value of A in the expression x = A - 23

x = 108 - 23 = 75

x = 75 <------- answer

Part C: Solve -np - 90 > 30 for n.

-np - 90 > 30

=> -np + np - 90 >30 + np

=> - 90 > 30 + np

=> -90 - 30 > 30 - 30 + np

=> -120 > np

=> np < - 120 <----- answer
</span>

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