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Unformatted text preview: is 1.5 times that of investment A, what amount did Linda put into investment A ?
(1) The interest for 1 year is $50 for investment A and $150 for investment B.
(2) The amount that Linda put into investment B is twice the amount that she put into investment A.
【【【【E
【【【【【【 investmentsA=X , investmentsB=y , interest rateA=X1, interest rateB=Y1 , 1.5X1=Y1 (1) X(X1)=50 , Y(Y1)=150 , Y(1.5X1)=150 , 【【【investment ,【【【 (2) Y=2X 【【【investment ,【【【
(1)+(2) 2X(1,5X1)=150 , Y(1.5X1)=150 【【【 investment 【【E
164. 16412!item!187;#058&010774
At a twoday seminar, 90 percent of those registered attended the seminar on the first day. What percent of those registered did not attend the seminar on either day?
(1) A total of 1,000 people registered for the twoday seminar.
(2) Of those registered, 80 percent attended the seminar on thesecond day.
【【【【E
【【【【(1)【【【【【【【1000, 90 percent【【【【【, 10 percent【【【【【【【【【【【【【 ,【【【【 (2)【【80 percent【【【2【 ,【【【【【...
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This note was uploaded on 06/15/2012 for the course ECON 401 taught by Professor Kim during the Spring '12 term at East China Normal University.
 Spring '12
 Kim

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