SOLUTION: Suppose you see the two summer jobs advertised at the right. Let x= the amount of sales and y= money earned in a week. cellular phone sales: y=150+0.2x stereo sales: y=200+0.1

Question 72840: Suppose you see the two summer jobs advertised at the right. Let x= the amount of sales and y= money earned in a week.
cellular phone sales: y=150+0.2x
stereo sales: y=200+0.1x
A- To earn the same amount of money at both jobs, how much will you need to sell in a week?
B- After talking with salespeople, you estimate weekly sales of about $600 with either job. At which job will you earn more money?
ON THE SIDE OF THE PAGE IT SAYS:
salesperson wanted
knowledge of cellular phones
on-site sales
$150/week + 20% commision
UNDERNEATH THAT IT SAYS:
sell stereo equipment in National Electronics Retail Chain!
$200/week + 10% commision
Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
Let x= the amount of sales and y= money earned in a week.
cellular phone sales: y=150+0.2x
stereo sales: y=200+0.1x
A- To earn the same amount of money at both jobs, how much will you need to sell in a week?
------
cell earnings = stereo earnings:
150+0.2x = 200+0.1x
0.1x=50
x=$500 in sales
----------------
B- After talking with salespeople, you estimate weekly sales of about $600 with either job. At which job will you earn more money?
cell earnings = 150+0.2*600
cell earnings = $270
---------------
stereo earnings = 200+0.1(600)
stereo earnings = $260
===============
Cheers,
Stan H.
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