C is the right answer , the equation of the line y=-4x-7
The average cost per cleaning service call charge by the company is $184.5.
<h3>What is an
equation?</h3>
An equation is an expression that shows the relationship between two or more numbers and variables.
Let y represent the total cost for x number of service calls in a year. Hence:
y = 39x + 349200
For 200 service call, in a year, x = 200 * 12 = 2400
y = 39(2400) + 349200 = $442800
Average cost = $442800 / 2400 = 184.5
The average cost per cleaning service call charge by the company is $184.5.
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Answer:
y = 38, x = 90, x = 10, u = 6.2, w = 52, and v = 7.9
Step-by-step explanation:
Since the triangles are congruent, the angle and side lengths are also congruent. (CPCTC) Therefore, y = 38, x = 90, x = 10, u = 6.2, and v = 7.9. For w, we need to use the sum of angles in a triangle. So, we do 180 - 38 - 90 = w
w = 52.
Twenty-six and seventeen hundredths
Answer:
Step-by-step explanation:
multiply first equation by 4 and second by 3 respectively:
combine the equations:
divide both sides by -48:
substitute the value of y to the second equation
simplify multiplication:
cancel 12 from both sides:
divide both sides by 4
therefore our solution is
