There are 15 boys out the 24 total students
4x +28 and 68 are vertical angles and are equal.
Set them to equal each other to solve for x:
4x +28 = 68
Subtract 28 from each side:
4x = 40
Divide both sides by 4:
x = 40/4
x = 10
Answer:
$101.85
Step-by-step explanation:
Think of the two days as separate equations. They are added together to get a sum of the pay she will receive after the two days.
Equation
(4.5*10.5) + (5.2*10.5) = x (This just represents the unknown value)
Solve Through
(47.25) + (54.60) = x
47.25 + 54.60 = x
101.85 = x
Amanda will get paid $101.85 For her 2 days of work.
First we need to know both the formula of A and B.
The formula of A is
C = 5 + 0.25p
with C representing total cost and p representing the amount of checks.
The formula of B is
C = 6 + 0.15p
with C representing total cost and p representing the amount of checks.
To find the point where A and B cost the same, we solve the following equation:
5 + 0.25p = 6 + 0.15p
Collecting terms gives us
-1 = -0.1p
Now we have to divide by -0.1 and we get.
10 = p
p = 10
So our answer: after 10 checks both accounts cost the same amount of money. Answer A.
