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Unformatted text preview: Graph P = 140n - 8500 for n < 1000. Estimate the profit, to the nearest ten dollars, corresponding to the sale of 875 hard drives. = $114,000 profit P= 140n-8500 n=1000 P= 140n-8500 n=875 P= 140n-8500 n=1000 P=(140*0)-8500 P=(140*875)-8500 P=(140*1000)-8500 P= 0-8500 P= 122500-8500 P= 140000-8500 P= -$8500 P= $114,000 P= $131,500 [pic] 5. When $ 8500 is invested in a savings account paying simple interest for the year, the interest, i in dollars, can be obtained from the equation i = 8500r , where r is the rate of interest in decimal form. Graph i = 8500r , for r up to and including a rate of 16%. If the rate is 12%, how much interest is earned? = $1020 i=8500r r=0% or 0.0 i=8500r r=12% or 0.12 i=8500r r=16% or 0.16 i=8500*0 i=8500*0.12 i=8500*0.16 i=0 i=1020 i=1360 [pic]...
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- Spring '11