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yawa3891 [41]
4 years ago
5

Y is -9an acceptable answer to the equation x2=81

Mathematics
1 answer:
devlian [24]4 years ago
3 0

Answer:

Yes

Step-by-step explanation:

-9 * - 9 =81

Two positives make a plus

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The average salary for a teacher is $55,000 per year. A physician makes on average $220,000. If you consider the earning potenti
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Answer:

The difference between the teacher's earnings as compared to the physician's earning over 30 years is $4,950,000

Step-by-step explanation:

Given as :

The average salary for a teacher in a year = $55,000 per year

The average salary for a physician in a year = $220,000 per year

Let The difference between the teacher's earnings as compared to the physician's earning over 30 years = $x

Now,

The average salary for a teacher for 30 years = $55,000 × 30 = $1,650,000

The average salary for a physician for 30 years = $220,000 × 30 = $6,600,000

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The difference between the teacher's earnings as compared to the physician's earning over 30 years = The average salary for a physician for 30 years  - The average salary for a teacher for 30 years

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