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4 years ago

Stephen spends 10% of his salary on food, 15% of it on transportation, and saves the remaining 2000. what is his salary?

Mathematics

1 answer:

Ber [7]4 years ago

5 0

Answer:

His salary is $2666.68

Step-by-step explanation:

First add the percent of the costs. 10% + 15% = 25%

Then subtract 25% from 100% to find the percentage that 2,000 is of the total salary. 100% - 25% = 75%

$2,000 is 75% of the total salary. Divide 2,000 by three to find the amount of money 25% of the salary is. ( 75% is 3/4 of 100) 2,000 divided by 3 = $666.67

25% of the salary is $666.67

Multiple that by 4 and you get the total salary.

666.67•4= $2666.68

Are you sure those were all the correct numbers because that was not a very nice number at the end there lol but that answer is correct with the numbers you gave me.

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Let's start from what we know.

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Now, calculate our sum:

$\left|\sum\limits_{k=1}^n(-1)^k\cdot k^2\right|=\left|S_n^+-S_n^-\right|=
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