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3 years ago

A plumber charges a flat rate of $100 and $50 per hour, h, for a job.

Mathematics

2 answers:

djyliett [7]3 years ago

8 0

It is either D or B..........

Vilka [71]3 years ago

6 0

Answer: the correct option is (C) 100 + 50h.

Step-by-step explanation: Given that a plumber charges a flat rate of $100 and $50 per hour, h, for a job.

We are to select the expression that represents the total cost for the job.

According to the given information, we have

the charge of the plumber in h hours is given by

$50\times h=50h.$

Since there is a flat rate of $100, so the total cost for the job will be

$C=100+50h.$

Thus, the required total cost for the job is $100+50h.$

Option (C) is CORRECT.

You might be interested in

If f(x) = -2[x] + 8, what is f(-1.8)?<br> O 4 <br> O 6<br> O 10<br> O 12

lina2011 [118]

Answer:

Step-by-step explanation:

since the function is -2x+8 and you have been told to find f(-1.8) you have to replace -1.8 were there's x in the function.

f(x)=-2x+8

f(-1.8)=-2x+8

=-2(-1.8)+8

=3.6+8

=11.6 round off to 12

I hope this helps

5 0

3 years ago

What is the value of x?

Nikolay [14]

Answer:

5 units (you are right!)

Step-by-step explanation:

The triangles ABD and BCD are similar.

Therefore,

$\frac{x}{10}=\frac{10}{4x} \\4x^{2}=100\\x^{2}=25\\x=5$

I hope this helped!

6 0

3 years ago

Someone plz help me I’m begging you

inessss [21]

Answer:

15 friends, 11 pounds, equally, 1.36 pounds

3 0

3 years ago

A biscuit recipe calls for 2 pounds of all purpose flour and .75 pound of butter, what would be the baker’s percentage for butte

Goryan [66]

Answer: 37.5%

Explanation:

Percentage is defined as parts of an amount in 100 parts of a basis. This must be stated mathamatically for better understanding and for calculations. It is the ratio:

% = (parts / base) × 100.

In this case you need to express the amount of butter as a part in 100 parts of all purpose flour, which, using the above definition, is:

% butter = (0.75 pounds of butter / 2 pound of flour) × 100

% butter = 0.75 × 100 / 2 = 75 / 2 = 37.5

The answer is expressed as 37.5%.

4 0

3 years ago

a diver dives from a 10m springboard. the equation f(t)=-4.9t^(2)+4t+10 models her height above the pool in seconds. what is her

Juliette [100K]

Answer:

4.975 meters

Step-by-step explanation:

$f(1.5)= -4.9(1.5)^2+4(1.5) + 10\\\\f(1.5) = -4.9(2.25) + 6 + 10\\\\f(1.5) = -11.025 + 6 + 10\\\\f(1.5) = -11.025 + 16 \\\\f(1.5) = 4.975$

4.975 meters

-Chetan K

8 0

3 years ago