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BartSMP [9]
3 years ago
11

The relationship between the number of hours a plumber works and the total work fee she charges is proportional. Her fee for 5 h

ours of work is $350. Which of the fallowing could be combination of values for the plumbers work hours and total work fee she charges ?
Mathematics
1 answer:
Mashcka [7]3 years ago
4 0

Answer: $70 per hour

Step-by-step explanation:

Hi, to answer this question we have to calculate the hourly fee.

To do this, we simply have to divide the 5 hour fee price (350) by the number of hours worked.(5):

Mathematically speaking:

350/5 = $70 per hour

So, since the work fee is proportional, for x hours, the expression is:

70x

Feel free to ask for more if needed or if you did not understand something.

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Juliette [100K]

Answer:

I believe it would be division.

Step-by-step explanation:

Sorry if its wrong, i havent done a question like this in a long time, please forgive me!

6 0
3 years ago
I round to 900 I have twice as many hundreds as ones and all my digits are different but their sums are 18 can someone answer th
stellarik [79]

Answer:

The number of once is 9.1  

The number of hundreds is 8.9

Step-by-step explanation:

Given as :

The total of digits having ones and hundreds = 900

The sum of digits = 18

Let The number of ones digit = O

And The number of hundreds digit = H

So, According to question

H + O = 18             .........1

100 × H + 1 × O = 900          ........2

Solving the equation

( 100 × H - H ) + ( O - O ) = 900 - 18

Or, 99 H + 0 = 882

Or , 99 H = 882

∴   H = \frac{882}{99}

I.e H = 8.9

Put the value of H in eq 1

So, O = 18 - H

I.e  O = 18 - 8.9

∴    O = 9.1

So, number of once = 9.1

number of hundreds = 8.9

Hence The number of once is 9.1  and The number of hundreds is 8.9

Answer

4 0
3 years ago
Two trains leave the station at the same time, one heading west and the other east. The westbound train travels at 80 miles per
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Answer:

1.4 hour, or 1 hr 24 min

Step-by-step explanation:

The trains separate at the rate (80 + 90) mph.

Recall that distance = rate times time, or time = distance / rate.

                                            238 mi

Here, the elapsed time is  -------------- = 1.4 hr, or 1 hr 24 min

                                             170 mph

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