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BigorU [14]
3 years ago
15

13. -lly + 32 = 104 - 5y

Mathematics
1 answer:
Maksim231197 [3]3 years ago
8 0

-11y + 32 = 104 -5y

+11y -32 -32 +11y

--- -- --

y 72 6y

72 6y

-- -- 72/6 = -12

6y 6y

<h2><u>|</u><u>Y</u><u>=</u><u> </u><u>-12</u><u>|</u></h2>

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Steven estimates how long his computer repairs will take. He discovers that ABC Tech and Tech Squad will charge the
katrin2010 [14]

You didn't include the costs of doing repairs at both computer repair firms. I fixed that for you.

ABC Tech ------- $20 service charge plus $15 per hour.

Tech squad ------- $30 service charge plus $10 per hour.

Answer:

Steven's estimate of the repair time is 2 hours.

Step-by-step explanation:

Now in this case, we were told that ABC Tech normally charges $20 service charge and $15 per hour of computer repair service. The second tech firm charges $30 service charge and $10 per hour for computer repair service. We are now simply required to find out or calculate the number of hours of computer repair service whereby the cost of doing repairs at both tech firms become equal.

Let us use "x" to represent that unknown number of hours. The equation needed to calculate this is:

20 + 15x = 30 + 10x

We then pair like terms

15x - 10x = 30 - 20

5x = 10

x = 10/5

x = 2

Therefore the number of hours of computer repair service whereby the cost of doing repairs at both tech firms become equal is 2 hours.

8 0
3 years ago
HELLPPPPPPPPPPPPPPPPP
forsale [732]

Answer:

y=-1/3x-8

Step-by-step explanation:

Here is the equation for slope-intercept form: y=mx+b

Ok first, let's find the y intercept, which is equal to b in slope-intercept form.

To find the y intercept, we need to look at the y axis. It is the point where the line touches it. The graph shows that the line touches the y axis at -8, so that is the y intercept, (0, -8).

Now, from that point, we need to find the slope, which is equal to m in slope-intercept form.

To find the slope, start on the point that you are on, which should be the y intercept, and count how many spaces you need to go up or down, and then left or right until you get to any other point on the line. These are called the rise (change in y) and run (change in x) respectively. The slope is equal to the rise over the run, or rise/run.

In this case, we can choose any point on the line that is shown on the graph that isn't the y intercept. I'll chose the point on the right nearest to the y intercept. From the point we are on, which is (-8,0), we will need to move one space down and three to the right.

One space down on the y axis is -1, and three spaces to the right on the x axis is +3, so our slope will be -1/+3, which is -1/3.

Let's go back to the slope-intercept form. y=mx+b. Now we can plug our information in.

We know the y intercept is -8, which is b,

and we know the slope is -1/3, which is m.

So substituting for b and m, we get y=-1/3x-8.

6 0
2 years ago
What is the sum of 2+5
CaHeK987 [17]

2 + 5 = 7...it’s basic addition but ok...

3 0
3 years ago
Read 2 more answers
?????????????????????????????????????????????????????
Harrizon [31]

Answer:

9 yd

Step-by-step explanation:

A cube consists of 6 square faces.

Divide the surface area by 6 for the area of one face

486 ÷ 6 = 81 yd²

The area of a square is

A = s² ( s is the side length )

Here A = 81, then

s² = 81 ( take the square root of both sides )

s = \sqrt{81} = 9

Thus side length is 9 yd

7 0
3 years ago
Part A: Maria rented a coat at $285 for 3 days. If she rents the same coat for 6 days, she has to pay a total rent of $510. Writ
TEA [102]
Part a y=95x

Part b 285=95•3

Part c ?

Hope I helped sorry I don't know how to do the last one!
3 0
3 years ago
Read 2 more answers
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