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Elan Coil [88]
3 years ago
8

How would I solve this

Mathematics
2 answers:
kondor19780726 [428]3 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]3 years ago
3 0
What are you solving for???
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Solve for x trignometry
BigorU [14]

9514 1404 393

Answer:

  23.44

Step-by-step explanation:

The mnemonic SOH CAH TOA reminds you of the relation ...

  Tan = Opposite/Adjacent

  tan(38°) = x/30

  x = 30·tan(38°) ≈ 23.4386

  x ≈ 23.44

3 0
3 years ago
Amanda has a piece of ribbon that is 1/4 yard long she wants to share the ribbon with her and 2 friends. If each of the three fr
Alex17521 [72]
1/4 x 2

1. Set up the problem,
1/4 x 2/1

2. Flip the second fraction, so it'll turn into 1/2

3. Multiply straight across
1/4 x 1/2 = 1/8

1/8 Would Be The Answer.
8 0
3 years ago
Jane finished a race in 7 minutes. How many seconds is this.
Serggg [28]

Answer:

420 seconds

Step-by-step explanation:

(60 seconds in a minute, 60 x 7 = 420)

#Nova

7 0
3 years ago
Read 2 more answers
At a drive through restaurant Juan’s family ordered a small drink and m medium drinks. Alex’s family ordered m medium drinks and
sertanlavr [38]

<u>Answer: </u>

Expression x + 2my + z represents cost of order where x, y, z are cost of small , medium and large drinks (in dollars) respectively.

<u>Solution: </u>

Given that  

Juan’s family ordered a small drink and m medium drinks.

Alex family ordered m medium drinks and a large drink.

Need to write an algebraic expression which shows total cost of both order in dollars.

Let’s assume cost of one small drink = x

And assume cost of one medium drink = y

And assume cost of one large drink = z

So now cost of order of Juan’s family is equal to cost of 1 small drink + cost of m medium drinks = 1 \times x + m \times y

= x + my

And cost of order of Alex family is equal to cost of m medium drinks + cost of one large drink

= m x y + 1 x z

=my + z

So total cost of both order in dollars = x + my + my + z = x + 2my + z

Hence expression x + 2my + z represents cost of order where x , y , z are cost of small , medium and large drinks (in dollars) respectively.  

5 0
3 years ago
Im stuck on this question i need help
Korolek [52]
I think it’s one half 1/2
4 0
3 years ago
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