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Mademuasel [1]
3 years ago
15

What is the surface area of a box that is 6 inches long, 2 inches wide, and 1 inch tall if it is scaled up by 10

Mathematics
2 answers:
Marina CMI [18]3 years ago
3 0

Answer:

120 in. I believe.

Step-by-step explanation:


tamaranim1 [39]3 years ago
3 0

Answer: The answer is 4000 in. sq.

Step-by-step explanation:

To find the surface area of a rectangular prism you follow the formula SA = 2(wl+hl+hw) However, with this question we must scale the values up by 10. We do this by multiplying them by 10. The original values were 6, 2, and 1. The new ones are 60, 20, and 10. Now all we do is plug them into the formula.

See :

SA = 2(wl+hl+hw)   SA = 2 (20 · 60 + 10 · 60 + 10 · 20)

This may look scary but once you simplify it, it looks like this :

SA = 2(1200+600+200)  

SA = 2(2000)  

SA = 4000

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Answer:

The system of equations is:

x + y = 42

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And there are 24 chickens.

Step-by-step explanation:

We know that the total number of cows (x) plus the total number of chickens (y) is 42, because Farmer Brown has 42 animals.

We also know that cows (x) have 4 legs and so 4 times the number of cows is the number of cow legs. And chickens (y) have 2 legs, so the number of chickens times two represents the total chicken legs. The sum of 4x + 2y is 120 because there are 120 legs in total.

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x + y = 42

Subtract x from both sides to isolate y.

y = 42 - x

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Subtract 4x from both sides

2y = 120 - 4x

Divide both sides by 2

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Now that the y's are isolated in both equation, you can put them into 1 equation. Where y = y:

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y = 42 - x

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The number of chickens is represented by y, so there are 24 chickens.

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2 years ago
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