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2 years ago

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

Mathematics

1 answer:

katrin2010 [14]2 years ago

8 0

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.

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Answer:

The t-distribution is used.

Step-by-step explanation:

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2 years ago

Solve for x. 83 = 35^x Express the answer to the hundredths place (i.e., two digits after the decimal point). x =

devlian [24]

Answer:

x = 1.24

Step-by-step explanation:

In order to get that x down from its current position of exponential, you need to take either the log or the natural log of both sides. The power rule tells us that we can then pull the exponent down in front. So let's take the natural log of both sides:

$ln(83)=ln(35)^x$

We can bring the x down in front to give us:

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The right side of this is "stuck" together by multiplication, so we can undo that multilication by division of the ln(35). That leaves us with just x on the right:

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Do this on your calculator and find that x = 1.24

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2 years ago

Please help me solve this problem

Stella [2.4K]

Answer:

See below

Step-by-step explanation:

<u>Since all graphs pass throught the origin, they all have the form of:</u>

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Each of them calculated for you and attached below.

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2 years ago

brad converted 5/11 to a decimal, and his result was repeating decimal. does this mean that the value is rational or irrational?

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Answer: It means the value is rational

Step-by-step explanation:

Repeating decimals can be converted to fractions and rational numbers are numbers that can be expressed as a fraction but irrational numbers cannot be expressed as a fraction and neither does it terminate or repeat.

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3 years ago

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Answer:

Step-by-step explanation:

Given

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