M= movie cost
v= video cost
Create two equations with the given information. Solve for one variable in equation one. Use that answer to substitute into equation two.
2m+12v=$44
5m+3v=$29
Solve for one variable in equation 1:
2m+12v=44
Subtract 12v from both sides
2m=44-12v
Divide both sides by 2
m=(44-12v)/2
Substitute m answer in equation two:
5m+3v=$29
5((44-12v)/2)+3v=29
(220-60v)/2+3v=29
Multiply everything by 2 to eliminate the fraction
(2)(220-60v)/2+(2)(3v)=(2)(29)
220-60v+6v=58
220-54v=58
Subtract both sides by 220
-54v= -162
Divide both sides by -54
v= $3.00 cost per video
Substitute v value to find m value:
2m+12v=$44
2m+12(3.00)=44
2m+36=44
Subtract both sides by 36
2m=8
Divide both sides by 2
m=$4.00 cost per movie
Check:
5m+3v=$29
5(4.00)+3(3.00)=29
20.00+9.00=29
29=29
Hope this helps! Please mark me as brainliest if it does. :)
Answer:
There are infinitely many solutions.
Step-by-step explanation:
3x + 2y = 7
-9x - 6y = -21
Now multiply the first equation by 3
3 × 3x + 2y = 7 ➡ 9x + 6y = 21 Now subtract second equation from first equation
9x + 6y - 9x - 6y = 21 - 21
0 = 0
The equation has infinitely many solutions meaning whatever value you write instead of x and y there will be solution.
The answer is D because it went up five then right 6
Answer:
Step-by-step explanation:
This what you can do unless you are solving for either variable.
I am joyous to assist you anytime.
x ≥ 4 which means that x must be greater than or equal to 4.
<h3>What is inequality?</h3>
An Inequality is defined as mathematical statements that have a minimum of two terms containing variables or numbers that are not equal.
Given inequality as :
⇒ 2x - 2 ≥ 6
Divided by 2 both sides of the inequality,
⇒ x - 1 ≥ 3
Add the 1 on both sides of the inequality,
⇒ x - 1 + 1 ≥ 3 + 1
⇒ x ≥ 4 or
⇒ x ∈ [4, ∞ )
So, the solution of 2x - 2 ≥ 6 is x ≥ 4
Therefore, x must be greater than or equal to 4.
Learn more about inequalities here:
brainly.com/question/20383699
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