Now mulitply both sides through by k-3
Can you solve it from here?
From the first-degree equations section of my pre-calc book:
1) (8)/(3k-9) - (5)/(k-3) = 4
2) Jason bought two plots of land for a total of $120,000. On the first plot he made a profit of 15%. On the second, he lost 10%. His total profit was $5500. How much did he pay for each piece of land?
Thanks!
PROBLEM: "Jason bought two plots of land for a total of $120,000. On the first plot he made a profit of 15%. On the second, he lost 10%. His total profit was $5500. How much did he pay for each piece of land?"
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Solution:
Let x = amount of the first lot
120,000 - x = amount of the second lot
(15%)x - 10%(120,000 - x) = 5,500,
0.15x - 12,000 + 0.10x = 5,500,
0.25x = 5,500 + 12,000,
x = (5,500 + 12,000)/0.25 = 70,000 - first lot,
120,000 - x = 120,000 - 70,000 = 50,000 - 2nd lot
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