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Elan Coil [88]
2 years ago
8

How would I solve this

Mathematics
2 answers:
kondor19780726 [428]2 years ago
5 0
The formula of the area of a rectangle is A = LW
You have been given the length and width as (x+1) and (x+3). You've also been given the area, 80 ft2

So we can substitute what we have in the formula as follows

80 = (x+1)(x+3)

If we FOIL the right side of the equation, we have

80 = x2+4x+3

Let's bring the 80 to the right side of the equation so that we have an equation equal to 0.

x2+4x-77 = 0

We can factor this as
(x+11)(x-7) = 0

So,
x+11 = 0 This gives us x=-11 which would yield dimensions of -10 and -8. Since we can't have negative dimensions, let's check the other factor.
x-7=0, giving us x=7
So the dimensions of the porch are
(7+1) and (7+3)

The porch is 8 x 10
Feliz [49]2 years ago
3 0
What are you solving for???
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scZoUnD [109]

Answer:

1. 5

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3. 9.90

Step-by-step explanation:

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The diced tomatoes cost $1.29.

When you solve the equation, you get 9.9. Convert that to money, and you have $9.90

7 0
2 years ago
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Answer:  -3

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Step-by-step explanation:

Multiply the numbers i hope this helps god bless

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Answer:

A skydiving company insists that its customers weigh at least 130 pounds, but no more than 280 pounds, including parachute and other gear. If the total weight of all gear is 25 pounds, write and solve a compound inequality that represents the weight range without gear that is acceptable.

105 ≤ x ≤ 255

think this is what you meant . . .

5 0
3 years ago
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kirill [66]

Answer:

The answer to this question is A

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