SOLUTION: Sam has $100 and Jack has $180 in each of their bank accounts. Sam deposits $20 each week and Jack deposits $10 each week. In how many weeks will they each have the same amount of
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-> SOLUTION: Sam has $100 and Jack has $180 in each of their bank accounts. Sam deposits $20 each week and Jack deposits $10 each week. In how many weeks will they each have the same amount of
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Question 917520: Sam has $100 and Jack has $180 in each of their bank accounts. Sam deposits $20 each week and Jack deposits $10 each week. In how many weeks will they each have the same amount of money?
I didI understand that the problem is asking me to find that the value for x will be the amount of weeks it takes until they have the same amount of money, I just don't understand how to solve it. Answer by josmiceli(19441) (Show Source):
You can put this solution on YOUR website! The amount that each one has at any tine
is a linear ( straight line ) relation.
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Let = total that each one has at any time
Let = number of weeks after they each started
adding money to their initial deposits
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Sam's equation:
Jack's equation:
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Just set the y's equal to each other
In 8 weeks they will have the
same amount of money:
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Here are the plots of their equations:
