Help with system of equations please  TOPIC_SOLVED

Quadratic equations and inequalities, variation equations, function notation, systems of equations, etc.

Help with system of equations please

Postby elisuzsmith on Fri Oct 18, 2013 5:24 pm

You and your friend are saving for college. You have $50 and are added $10 each week to your savings. Your friend has $20 and he is adding $20 each week to his savings.
a. what system of equations would be a good model for this situation? Let x be number of weeks and y be the number of dollars saved.
b. Graph your system of equations
c. use the graph to determine when you and your friend will have the same amount of money saved. Explain your answer
elisuzsmith
 
Posts: 1
Joined: Fri Oct 18, 2013 5:16 pm

Sponsor

Sponsor
 

Re: Help with system of equations please  TOPIC_SOLVED

Postby little_dragon on Fri Oct 18, 2013 6:39 pm

elisuzsmith wrote:You and your friend are saving for college. You have $50 and are added $10 each week to your savings. Your friend has $20 and he is adding $20 each week to his savings.
a. what system of equations would be a good model for this situation? Let x be number of weeks and y be the number of dollars saved.

do some numbers 2 see what happens:
you: 50, 50+10, 50+10+10=50+2*10, 50+10+10+10=50+3*10, etc, etc
him: 20, 20+20, 20+20+20=20+2*20, 20+20+20+20=20+3*20, etc, etc
can U see the eqns now?
:wave:
User avatar
little_dragon
 
Posts: 189
Joined: Mon Dec 08, 2008 5:18 pm


Return to Intermediate Algebra