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lys-0071 [83]
3 years ago
14

2x - y = 10 y = -x - 1 Solve the system of equations

Mathematics
1 answer:
alekssr [168]3 years ago
8 0
X= 9<span> and y= </span><span>8 ----------------------------------------------------------</span>
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Please help! <br> I dont understand this and I need help with it.
zepelin [54]

Alright, so these type of word problems need to be broken down into sections you can understand.


You bought 100 feet of fencing at your local garden store to go around your garden.

Your garden is a square, with the side length being 13 feet. A square is a quadrilateral that has 4 equal sides.

If fencing goes around the perimeter of a garden (which it does, in this problem) then we need to find the perimeter of the garden - the perimeter of a square can be found by multiplying the side length given by 4. ( 13(4) or 13 + 13 + 13 + 13)

The perimeter of the garden is 52 feet.

A diagram representing the situation can be drawn as a square, filled in with little flowers, and along any side, write the number 13 once. Above the drawing, you can draw picket fencing *Google white picket fence for the basic shape* and write 100 underneath it.

To find out how much fencing is left over, we subtract 52 from 100 and get 48.

And that's where part iii comes in - you can explain all I have and then do 48 feet times $12.60

48 x 12.60 = $604.80

<em>(some really expensive fencing left over!)</em>


I hope I helped you solve this!! :)


5 0
3 years ago
Whats the mean of 5 and 15
Assoli18 [71]
The mean of 5 and 15 is 10. (5+15= 20  20/2=10)
8 0
3 years ago
Read 2 more answers
"1. A z-score of zero always means
Sergeeva-Olga [200]

Answer:

d.

Step-by-step explanation:

Here is an answer I found on the internet (kudos to investopedia.com)

If a Z-score is 0, it indicates that the data point's score is identical to the mean score.

In other words, it's saying that a z-score of zero has a standard deviation of zero.

7 0
2 years ago
Please help me , idk the answer
solmaris [256]

Hello!

The answer is 20.

On the left side of the table, you are counting by 1's so of course its going to be 0,1,2,3. Now, on the right side of the table, you are counting by 5's so its going to be 5,10,15,20.

Hope I helped!!!!

-boribaby

3 0
3 years ago
A bird flies up and then down again, approximately following the
BaLLatris [955]

Answer:

  • 112.5 ft

Step-by-step explanation:

The maximum is achieved at vertex of parabola.

The x- coordinate of the vertex is determined by x = - b/(2a).

  • x = - 15/(-0.5*2) = 15

The maximum height is the corresponding y- coordinate

  • y = - 0.5(15²) + 15(15) = 112.5 ft
4 0
2 years ago
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