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olya-2409 [2.1K]
3 years ago
13

Margaret goes to the county fair with $35

Mathematics
1 answer:
spin [16.1K]3 years ago
6 0

Answer:

what???

Step-by-step explanation:

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2×+y=0, ×-y=6 what is the solution to this system of equations?
WITCHER [35]
2×+y=0,
×-y=6

Add the 1st to the 2nd equation==> 3x +y-y=6+0==> 3x=6 & x=2

Plug 2 into any of the equation & you will get y=-4
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3 years ago
What was gabriel error
Pavlova-9 [17]

The change is given by the difference between how much you paid and how much you actually had to pay. For example, if you pay with a $50 bill and you had to pay $13, your change will be 50-13 = 37 dollars.

In this case, we have

30 - (2.5x+2y-2) = 30-2.5x-2y+2 = 32-2.5x-2y

So, Gabriel's mistake was to leave the negative sign to the "-2" at the end of the expression, instead of flipping it to positive "+2" when subtracting it.

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3 years ago
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Papessa [141]

The hypotenuse is the side opposite to the right angle.

B.) opposite

5 0
2 years ago
How many solutions does x2 - 10x=-25 have?
Elina [12.6K]

Answer:

4.2 Solving x2-10x+25 = 0 by Completing The Square . This quadratic equation has one solution only. That's because adding zero is the same as subtracting zero.

Step-by-step explanation:

3 0
3 years ago
What is the square root of -1
patriot [66]

Answer:

i

Step-by-step explanation:

This is the answer you get when you square and you get a negative number.

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