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podryga [215]
3 years ago
5

Please help me because I don't understand how to do it.:)

Mathematics
1 answer:
lana66690 [7]3 years ago
8 0

Answer:

C  Yes, 75+ 2.5*60 = 225

Step-by-step explanation:

The charges for the electrician

1st hour = 75

Additional hours 60

We have 3 1/2 hours of labor

The first hour is 75 dollars

3 1/2 - 1 = 2 1/2

There will be 2 1/2 hours at the 60 dollar rate

75 + 60 * 2.5 =

75 + 150

225

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Komok [63]

The equation BEST represents the relationship between velocity and time is y = 2.2x + 6.

According to the statement

we have given some data in the form of graph according to the velocity per time and we have to find the relationship between the velocity and time.

So, for this purpose,

we know that the best method show the relationship is a slope intercept form.

So,

The slope intercept form is a the equation of a straight line in the form y = mx + b where m is the slope of the line and b is its y-intercept.

And

Using the coordinate points on the plane (0, 6) and (10, 28)

now we Determine the slope

Slope = 28-6/10-0

Slope = 22/10

Slope = 2.2

And then Determine the y-intercept

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y = 2.2x + 6

So, The equation BEST represents the relationship between velocity and time is y = 2.2x + 6.

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8 0
2 years ago
Dentro de 12 años la edad de Ana será el triple de su edad actual. Determina la edad de Ana dentro de 2 años.
vlada-n [284]

Ana va a cumplir los 36 anos de edad.

4 0
3 years ago
You have 420 saved for retirement. Your account earns 18% interest. How much will you be able to pull out each month, if you wan
forsale [732]

Answer:

495.6

Step-by-step explanation:

18% of 420 is 75.6. Multiply that by 63 to get 4762.8. 420 multiplied by 63 equals 26460. 26460 plus 4762.8 is 31222.8. 31222.8 divided by 63 is 495.6. So the answer is $495.60 per year.

6 0
3 years ago
please help, I do not know how to do this at all! A restaurant has a large goldfish pond. Suppose that an inlet pipe and a hose
Ne4ueva [31]

Answer:

H = 20.5 hours

I = 19.5 Hours

Step-by-step explanation:

Start by creating a system.

I = time which the inlet pipe takes alone to fill the pond

H = time which the hose takes alone to fill the pond

10/I + 10/H = 10

H - I = 1

H = 20.5 hours

I = 19.5 Hours

8 0
3 years ago
NEED ANSWERS ASAP PLEASE
WITCHER [35]

Answer:

the first one is 4 and 5

Step-by-step explanation:

the second one is 45 because 15+15+15 is 45, you get 15 by the square root of 225

4 0
3 years ago
Read 2 more answers
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