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kipiarov [429]
3 years ago
10

A plumber charges $25 for a service call plus $50 per hour of service. Write an equation in slope-intercept form for the cost, C

, after h hours of service.
Mathematics
1 answer:
krok68 [10]3 years ago
7 0

Answer:

C = 25 + 50h

Step-by-step explanation:

cost for zero hours is $25, so that is the y-intercept of the graph.

each hours adds a cost of $50, so that is the gradient of the graph. These two values give us our equation in slope-intercept form.

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A rectangle is 5 feet wide and 10 feet long what is the perimeter
lara31 [8.8K]
The perimeter would be 30 feet.
Since the rectangle is 10 ft long and 5 ft wide, you have to all sides together
10 + 10 + 5 + 5 = 30
7 0
2 years ago
sarithas age is 3 times her sons age. ten years ago he was five times her sons age. find thier present age
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3 years ago
Evaluate the expression 11C4.
kicyunya [14]

The correct answer is: 330

Explanation:

The formula for combination is given as follows:

^nC_r = \frac{n!}{r! (n-r)!} --- (1)

Where n = 11

r = 4

Plug in the values in equation (1) and calculate:

^nC_r = \frac{n!}{r! (n-r)!} \\ ^{11}C_{4} = \frac{11!}{4! (11-4)!} \\ ^{11}C_{4} = \frac{11*10*9*8*(7!)}{4! (7)!} \\ ^{11}C_{4} = \frac{11*10*9*8}{4!} \\ ^{11}C_{4} = \frac{11*10*9*8}{4*3*2*1} \\ ^{11}C_{4} = 330 \\

Hence the correct answer is 330.

8 0
2 years ago
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What is the greatest common factor of 24 and 9
Katyanochek1 [597]

Answer:

The Greatest Common Factor of 24 and 9 is 3.

8 0
2 years ago
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An artist used a scale factor of 1 in=8 ft to create a model of a building. if the actual building has a height of 64 feet, how
nalin [4]

Answer:

<em>Okay, so what I think you mean to ask what the scale factor between the model and actual building</em> is, so i crunched the numbers. if 1 in equaled 8 feet and the actual thing was 64 ft, then we can just say that 64 divided by 12 is 5.3, so the model could be

5.3 ft. is the size of the model

BUT

you said how many feet are they apart so in inches its 705, in ft its 58.75

Step-by-step explanation:

a foot is 12 in.

64/12 is 5.3

64 ft is 768 inches, and 5.3 is 63.

768-63 = 705.

there are 705 inches in difference, in feet its 58.75

8 0
2 years ago
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