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WARRIOR [948]
3 years ago
5

Jerry works no more than 20 hours a week during the school year. He is paid $10 an hour for tutoring geometry students and $7 an

hour for delivering pizzas for Pizza King. He wants to spend at least 3 hours, but no more than 8 hours, a week tutoring. Find Jerry’s maximum weekly earnings.
Mathematics
1 answer:
zvonat [6]3 years ago
4 0
Works no more than 20 hours/week

3-8 hours tutoring
Subtract 3-8 from the 20 to give you hours for pizza delivery

So anywhere between 12-17 hours for pizza delivery

To find his maximum weekly hours (keeping in no more than 20 hours)

3 hours tutoring
17 hours pizza

3 x $7 = $. $21
17 x $10 = $170
-----------------------
$191
If he did
8 hours of tutoring
12 hours of pizza

8 x &7 = $56
12 x $10 = $120
------------------------
$176

So he'd be better off working more hours delivering pizza & less doing tutoring


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In this sense, we are given the "elevations" or depths of two places:

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Keeping in mind we are actually talking about the depth of this places, we can  say Bajo del Gualicho is deeper than Lago Enriquillo, and this is best expressed with the following inequality:

G>E

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sp2606 [1]

Given:

The given quadratic polynomial is :

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The zeroes of a quadratic polynomial are negatives of the zeroes of the given polynomial. So, the zeroes of the required polynomial are 3 and -4.

A quadratic polynomial is defined as:

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