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patriot [66]
2 years ago
15

Systems of equations pls help!

Mathematics
1 answer:
timama [110]2 years ago
8 0
Equation 1 + equation 2

3x-8y +(-3x+10y) = 9+(-15)
2y= -6
then y=-3

from equation 1
3x-8y=9
3x-8(-3)=9
3x+24=9
3x=9-24=-15
then x=-5
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Please please please help me with this question and show your work.
lawyer [7]
The correct answer is D. You can see It is the biggest bar and so you can estimate the correct answer.
4 0
3 years ago
Pls help I don’t get what dis teacher even wants bro
Kaylis [27]

Answer:

5 cups of flour.

Step-by-step explanation:

I know the wording of the problem may be confusing at first, but if you look at it a little bit, it's just multiplication and division.

To start,

12 biscuits require 2 cups of flour,

meaning that 6 biscuits (half of the original) only require 1 cup.

<u>(12/2 = 6)</u>

Next,

We need to find how much flour is in 30 biscuits.

We know that 1 cup is in 6 biscuits, and if you were to find how much was in 30 biscuits, you would just need to divide 30 by 6.

<u>(30/6 = 5)</u>

5 cups of flour would be your answer.

To put it mathematically,

(12/2 = 6), (30/6 = 5)

8 0
9 months ago
For the expression 6 – y + 3, determine the coefficient for the variable term.
san4es73 [151]

Answer:

-1

Step-by-step explanation:

Any variable without a visible coefficient means it has a coefficient of 1. Since it's negated, the coefficient is -1.

7 0
3 years ago
A quadratic equation has zero real number solutions. Which could be the discriminant value associated with this equation?
andriy [413]
It will be -5 I pretty sure but I’m not sure
8 0
3 years ago
May someone please explain to me how to do this in the easiest way? I don't really understand. Thanks❤
katrin [286]
Ok, so 1 is a whole number.  1/5 is a fraction of 1.  So you want to subtract 1/5 from 1.  The number 1 is equal to 5/5.  So if you subtract 1/5 from 5/5 you are left with 4/5.  You do the same with the second one, just subtract 3/5 from 5/5 to get your answer.
8 0
3 years ago
Read 2 more answers
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