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arsen [322]
4 years ago
8

How many solutions are there to the following system of equations?

Mathematics
1 answer:
ANTONII [103]4 years ago
5 0
I believe the answer is A because you cannot find x nor y
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WILL GIVE BRAINLIEST IF CORRECTT
solniwko [45]
And then Matt and Adam ending up falling in love
6 0
3 years ago
Will ran 120 minutes in the past two days. He ran 20 more minutes the second day than the first day. how many minutes did he run
valentinak56 [21]
Here is the equation: x+(x+20) = 120

Since you can't combine anything yet, its x+x+20=120

You need to get x by itself

Minus 20 from both sides

Its x+x=100 now

Combine the x's which is now 2x

Now divide 100 by 2 which is 50

x=50
---------------

Lets check:

50+(50+20)=120

Now combine the numbers in the parentheses

Its now 50+70=120

50+70=120 and 70-50=20

As you can see, he ran 50 minutes the first day and 70 minutes the second day 
4 0
3 years ago
At Super Grocery, potatoes cost $2.85 for 5 pounds. At Value Market, potatoes cost $4.20 for 7 pounds. What is the unit price of
Mashcka [7]

Answer:

$1.66 per pound of potatoes.

Step-by-step explanation:

I think you can just ignore the part at the beginning, this is probably a multi-part question.

unit price is just amount/cost so all you need to do is substitute that.

7/4.20 = 1.66$ per Pound

Good luck with your schoolwork/homework!

-----------------------------------------------------------------

Sorry in advance for bad explanations or wrong answers.

4 0
4 years ago
A cornbread recipe calls for 2 eggs to make 15 servings. how many eggs are needed to make 45 servings? (i think its 6)
vladimir1956 [14]
You thought right.
if 2 eggs make 15 servings then:
4 eggs make 30 servings and
6 eggs make 45 servings
4 0
3 years ago
curve before applying the theorem.)F(x, y) = y cos(x) − xy sin(x), xy + x cos(x), C is the triangle from (0, 0) to (0, 12) to (3
Serhud [2]

C has a clockwise orientation, so in order to use Green's theorem (which is probably the "theorem" mentioned here), we have

\displaystyle\int_C\vec F\cdot\mathrm d\vec r=-\iint_D\frac{\partial(xy+x\cos x)}{\partial x}-\frac{\partial(y\cos x-xy\sin x)}{\partial y}\,\mathrm dx\,\mathrm dy

where D is the triangle region.

=\displaystyle\int_0^3\int_0^{12-4x}(\cos x-x\sin x)-(y+(\cos x-x\sin x))\,\mathrm dy\,\mathrm dx

=\displaystyle-\int_0^3\int_0^{12-4x}y\,\mathrm dy\,\mathrm dx=\boxed{-72}

4 0
3 years ago
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