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An investment in Pear Computers has an initial value of $5,000. A second investment in Macrosoft Computers has an initial value of $7,500. The Pear stock falls by the same percentage as the Macrosoft stock rises. If the new combined investment value is $13,000, by what percentage did the Pear stock fall and the Macrosoft stock rise

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Answer:

Pear stock fell by 20% to $4000 and Macrosoft rose by 20% to $9000

Explanation:

Total value = pear computers + macrosoft

$13000= (5000-5000*X) + ( 7500+7500*X)

13000 = 5000-X5000+7500+X7500

13000-5000-7500=X2500

500=X2500

X=500/2500

X=0.2*100=20%.

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