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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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Please answer right away and don’t guess
ivolga24 [154]

im pretty sure the answer is 30

5 0
3 years ago
What is the value of r? 1.2r−1 1.3r=40
Alexus [3.1K]
  the value is 
1.2r-11.3r=40

-10.Ir=40
r=40/-10.1
r=-0.2525
 
hope this helps :):):)
4 0
3 years ago
Help please and thank you !
blsea [12.9K]
I can’t see it properly
4 0
2 years ago
Please help answer this if your able two :)) ♡
andreev551 [17]
Answer:

Y + 3= 3/4( x - 7)
8 0
3 years ago
Read 2 more answers
Mr. Mole left his burrow that lies 7 meters below the ground and started digging his way deeper into the ground, descending at a
netineya [11]

Answer:

7/6 =1.16  

Step-by-step explanation:

1.16x16=6

5 0
2 years ago
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