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3 years ago

Question in picture above ^

Mathematics

1 answer:

Andrei [34K]3 years ago

5 0

[ 4(4) x 4(3) ] / 4(5)

= [4(4+3)] / 4(5)

= 4(7) / 4(5)

= 4(7-5)

= 4(2)

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Julio's father is 4 times as old as Julio. The sum of their ages is no less than 55.

seropon [69]

Call (F) the age of the father and (J) the age of Julio

The F & J are related in this way: F=4J

Now you have a restriction in the form of inequality: The sum of both ages has to be greater or equal than 55.

Algebraically that is: F + J ≥ 55

You can substitute F with 4J to find the solution for J:

4J + J ≥ 55

5J ≥ 55

Now divide both sides by 5

5J/5 ≥ 55/5

J ≥ 11

That Imposes a lower boundary for the value of J of 11, meaning that the youngest age of Julio can be 11

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Answer:

The total earning of commission on sales of 85, 000 will be:

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Step-by-step explanation:

Total sales earning = 85,000

As salesperson earns 5% commission the first 70,000.

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As 15000 is the sales earning on which he will get commission 7%.

Because

85,000 - 70,000 = 15000

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Therefore, the total earning of commission on sales of 85, 000 will be:

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