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kipiarov [429]
2 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]2 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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How much would $900 be worth after 13 years, if it were invested at 3% interest compounded continuously? (Use the formula below
liberstina [14]

Answer:

$351.00

Step-by-step explanation:


P is the principal amount, $900.00.

r is the interest rate, 3.00% per year, or in decimal form, 3.00/100=0.03.

t is the time involved, 13....year time periods.

So, t is 13....year time periods.

To find the simple interest, we multiply 900 × 0.03 × 13 to get the the answer.

Cheers mate!

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What is 7(-3). I am confuse and don't understand.
emmasim [6.3K]
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7 0
2 years ago
HELP ME PLEASE!!!!!!!
MakcuM [25]

Given:

The graph of a line.

To find:

The equation of line and values of m and b. Check whether it is proportional or linear.

Solution:

From the given graph it is clear that, the line passes through (0,4) and (2,0). So, the equation of line is

y-y_1=\dfrac{y_2-y_1}{x_2-x_1}(x-x_1)

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y-4=\dfrac{-4}{2}(x)

y-4=-2x

Adding 4 on both sides, we get

y=-2x+4

On comparing this equation with slope intercept form, i.e., y=mx+b, we get

m=-2\text{ and }b=4

All lines are linear. If a line passes through the origin then it is proportional.

From the given graph it is clear that the line is not passing through the origin, i.e., (0,0). So, it is linear not proportional.

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