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Elenna [48]
3 years ago
8

The relationship between the number of hours a plumber works and the total work fee

Mathematics
2 answers:
crimeas [40]3 years ago
7 0

Answer:

The answer is B,C, And D

Step-by-step explanation:

I just saw it on Khan and got it right.

Lynna [10]3 years ago
5 0

Answer:

ANSWERS ARE B, C, AND D.

Step-by-step explanation:

I found the unit rate of 350 and 5, because we can use a calculator (as stated on top) I just punched in 350 divided by 5 and got 70. Now i know this may not sound that "professional", but nothing needs to always be professional as long as its efficient and most importantly gets you the right answer. I then took the time to multiply each number, (the ones on the left : 3, 3.5, 6, 7.25, and 8) by 70. If the answer you got on the calculator match up to the number on the right, (240, 420, 507.50, and 490) its correct, if it doesn't match up, you can tell that its most likely not the answer. You should end up with three answers that all end up having the unit rate of 70. Hope this helps anyone who needed it.

ANSWERS ARE B, C, AND D.

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egoroff_w [7]

Using the inverse functions property:

  • f⁻¹(f(93)) = m = 93
  • f(7) = n = -6

<h3>How to find the values of m and n?</h3>

Two functions f(x) and f⁻¹(x) are inverses if:

f( f⁻¹(x) ) = x

f⁻¹(f(x)) = x

We want to get:

f⁻¹(f(93)) = m

By using the above definition we get:

f⁻¹(f(93)) = m = 93

Now for the second one we want:

f(7) = n

If you look at the table, you can see that f(x) contains the point (7, -6), then:

f(7) = n = -6

If you want to learn more about inverse functions:

brainly.com/question/14391067

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4 0
1 year ago
I don’t understand this problem
Wittaler [7]

68x87 i think?

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3 0
3 years ago
Read 2 more answers
A farmer ploughts his lands in 12 days if he use 5 tractors ow long will it if he uses 3 tractors?​
saul85 [17]

Answer:

Step-by-step explanation:

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2 years ago
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Find each sum.<br> 1. 56+ (-56)
Juliette [100K]

Find each sum.

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5 0
2 years ago
7. Given the following information, calculate, in order, the amount credited and the outstanding balance.
svp [43]

Answer:

C. $824.74, $175.26

Step-by-step explanation:

1) Amount Credited

The formula to calculate the amount credited =

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Discount is given in the question as 3/10

Where 3 = Discount rate

Amount paid = $800

Amount credited = 800/( 100% - 3%)

= 800/ 97%

= 800/ 0.97

= $824.74

b) Outstanding balance = Invoice - Amount credited

Invoice = $1000

Amount credited = $824.74

Outstanding balance = $1000 - $824.74

= $175.26

5 0
3 years ago
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