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<em><u>Question:</u></em>
Sarah sells fruit trays at a salad shop. Last week, she sold 450 fruit trays for $8 per tray. In previous weeks, she found that for every $0.85 increase in the price, she sold 15 fewer fruit trays. Which equation can be used to find Sarah's weekly sales income in dollars, y, after x price increases of $0.85?
<em><u>Answer:</u></em>
<em><u>The equation used to find Sarah's weekly sales income is:</u></em>
<em><u>Solution:</u></em>
Let "y" be the sarah income
From given,
Sarah's income = Number of trays x Rate per tray
Last week, she sold 450 fruit trays for $8 per tray
Therefore,
y = 450 x 8
In previous weeks, she found that for every $0.85 increase in the price, she sold 15 fewer fruit trays
If there is an increase of 0.85 in price,
New price = 8 + 0.85
For x number of increases,
new price = 8 + 0.85x
She sold 15 fewer fruit trays
Number of trays reduced = 450 - 15x
<u><em>Thus, Sarah's income is:</em></u>
Thus the equation used to find Sarah's weekly sales income is found