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3 years ago

6

An electrician charges $25 to make a house call, plus $40 for every hour of work. Which equation shows how to find C, the total

cost for having the electrician work for h hours?

1 answer:

vlada-n [284]3 years ago

4 0

Answer:

C=40h+25

Step-by-step explanation:

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Maya is building a sandbox that is 36 inches wide. The length is four times the width. What is the perimeter of the sandbox? Sho

Alex17521 [72]

Answer: I believe the answer is 360 in.

Step-by-step explanation:

You can use Khan Academy

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3 years ago

A campus deli serves 300 customers over its busy lunch period from 11:30 a.m. to 1:30 p.m. A quick count of the number of custom

NeX [460]

Answer:

4 minutes

Step-by-step explanation:

There are two hours from 11:30 a.m. to 1:30 p.m

The hourly rate of service is:

$r=\frac{300}{2}=150\ customers/hour$

If the average number of customers in the system (n) is 10, the time that a customer spends in process is given by:

$t=\frac{n}{r} =\frac{10}{150}=0.06667\ hours$

Converting it to minutes:

$t= 0.066667\ hours*\frac{60\ minutes}{1\ hour}\\t=4\ minutes$

A customer spends, on average, 4 minutes in process.

7 0

4 years ago

Helppp!!!! please!!!

Annette [7]

Answer: 2) 1767.1

Step-by-step explanation:

For a sphere, V=(4 /3)πr^3. A diameter is 2r. Thus the radius of the circle is 7.5 inches. Thus, the volume is about 1767.15.

Hope it helps <3

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3 years ago

(03.05 MC)Maya has $15 to spend. She spent $5.50, including tax, to buy a notebook. She needs to save $7.75, but she wants to bu

astraxan [27]

If Maya only has $15 dollars to spend and she buys a notebook for $5.50 then that leaves her with $9.50 and if she has to save $7.75 then that leaves her with $1.75 and since she wants to buy cookies then you have to figure out how many cookies she can get with $1.75 plus the tax but food doesn't have tax so she can buy 7 packages of cookies since there only 25 cents is right on point at $1.75 I hope I answered your question with all the calculating I had to do and the typing I went through to explain it to you !!!!!!!!!!!!!!!!!!!!!!!! now could you please give me a thank you and hit the brain aster button please and thank you so much

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3 years ago

Read 2 more answers

it takes 30 kids 6 hours to build a man sized Sand Castle. how many kids were there if the same game took only two-and-a-half ho

Pachacha [2.7K]

Answer:

There were 72 kids there.

Step-by-step explanation:

This question can be solved using proportions, by a rule of three.

The number of kids and time are inversely proportional, that is, if we increase the number of kids to build the castle, the time it takes will decrease. This means that to solve the rule of three, instead of applying cross multiplication, we apply line multiplication.

We have that:

30 kids - 6 hours

x kids - 2.5 hours.

Applying line multiplication

$2.5x = 30*6$

$x = \frac{180}{2.5}$

$x = 72$

There were 72 kids there.

4 0

3 years ago