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3 years ago

What is the y-coordinate of the solution for the system of equations?

1 answer:

5 0

First equation is: x - y = 12
x = 12 + y

Now, substitute this in 2nd equation,
2x - 3y = 27
2(12+y) - 3y = 27
24 + 2y - 3y = 27
-y = 27 - 24
y = -3

In short, Your Answer would be -3

Hope this helps!

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More mathh guyssss!!!!!!!!

Monica [59]

Answer:

B. (-1, 0)

General Formulas and Concepts:

<u>Algebra I</u>

Solving systems of equations using substitution/elimination
Solving systems of equations using graphing

Step-by-step explanation:

To find the solution set of a systems of equations, the point where the 2 lines intersect would show the solution for the systems.

According to the graph given, both lines intersect each other at x = -1.

Therefore, our answer is B.

6 0

3 years ago

Need help with #2 and #3 all of the problem

-Dominant- [34]

Answer:

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3 years ago

A 125-mL container of amoxicillin contains 600 mg/5 mL. How many milliliters would be used to administer 400 mg of amoxicillin?

Dovator [93]

Answer:

3.33 milliliters.

Step-by-step explanation:

We have been given that a 125-mL container of amoxicillin contains 600 mg/5 mL.

First of all, we will find amount of mg's of amoxicillin per ml as:

$\text{Concentration of amoxicillin per ml}=\frac{\text{600 mg}}{\text{5 ml}}$

$\text{Concentration of amoxicillin per ml}=\frac{\text{120 mg}}{\text{ml}}$

Now, we will use proportions as:

$\frac{\text{1 ml}}{\text{120 mg}}=\frac{x}{\text{400 mg}}$

$\frac{\text{1 ml}}{\text{120 mg}}\times \text{400 mg}=\frac{x}{\text{400 mg}}\times \text{400 mg}$

$\frac{\text{400 ml}}{120 }=x$

$\text{3.33 ml}=x$

Therefore, 3.33 milliliters would be used to administer 400 mg of amoxicillin.

5 0

3 years ago

Please help Roni and Allie are mowing the grass at the soccer field. Roni has a riding lawn mower and can mow the field in 30 mi

Zolol [24]

Roni and Allie are mowing the grass at the soccer field. Roni has a riding lawn mower and can mow the field in 30 minutes. Allie is pushing a lawn mower and can mow the field in 75 minutes. This can be solve by

(x/30)+(x/75) =1

X =21.43

<span>So ronie can mow 21.43/30 = 0.71 of the field</span>

4 0

3 years ago

Read 2 more answers

A pendulum is swinging next to a wall. The distance from the bob of the pendulum to the wall varies in a periodic way that can b

Roman55 [17]

Answer:

11?

Step-by-step explanation:

i dont understand....

4 0

2 years ago