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Question 1158316: 1) Laurie has $15,000 to invest. She placed a portion of the funds in a savings account and 3,000 more than twice this amount in a checking account. How much did Laurie place in each account?
2) The charity group helps the children living in poverty all over the world. In 2001 donation were about $120.5 million and in 2005 donation were about $216.5 million. The organization assumes that this trend will continue at a constant rate in the future.
2.a) find the rate of change (slope) of donations over time and explain its meaning in the context of this problem?
2.b) write an equation to represent this situation.
2.c) how much in donation can the organization expect in the year 2025?
Found 3 solutions by mananth, ikleyn, josgarithmetic:
Answer by mananth(16946)   (Show Source):
You can put this solution on YOUR website!
1) Laurie has $15,000 to invest.Total
She placed a portion of the funds in a savings account. let it be $x
and 3,000 more than twice this amount in a checking account.
3000+2x
2) The charity group helps the children living in poverty all over the world. In 2001 donation were about $120.5 million and in 2005 donation were about $216.5 million. The organization assumes that this trend will continue at a constant rate in the future.
(216.5-120.5)/4
2.a) find the rate of change (slope) of donations over time and explain its meaning in the context of this problem?
=24 billion/year
2.b) write an equation to represent this situation.
C= 24x + 120.5 where x is the number of years after 2001
2.c) how much in donation can the organization expect in the year 2025?
c= 24*(25-21) +120.5
696.5 billion in 2025
Answer by ikleyn(52787)  (Show Source):
You can put this solution on YOUR website! .
The post by @mananth consists of 4 positions, according to 4 parts of the original problem.
Each of these four responses is I N C O R R E C T.
/\/\/\/\/\/\/\/
To the visitor.
At this forum, there is a POLICY, a RULE and a REQUIREMENT:
ONE and ONLY ONE problem per post
Those who violate this rule, work AGAINST their own interests.
In particular, if you do violate, you ALWAYS will obtain the answers from the "tutors" of that quality,
as you get now from @mananth.
Answer by josgarithmetic(39617)  (Show Source):
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