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September 2, 2014

September 2, 2014

Posted by **Annie** on Sunday, February 7, 2010 at 12:22pm.

How would you set this up?

- math -
**drwls**, Sunday, February 7, 2010 at 12:32pmSuppose there are x 2-pointers and y 4-pointers.

x + y = 40

2x + 4y = 100

If you are learning algebra, you probably know what to do next.

You could double both sides of the first equation and subtract what you get from the second equation, for example. That would give you 2y = 20 right away.

- math -
**joe**, Sunday, February 7, 2010 at 12:35pmOk you have to write a system of equations.

x+y=40

2x+4y=100

y=40-x

2x+4(40-x)=100

solve: X=30 Y=10

then 30+y = 40

y=10

- math -
**Annie**, Sunday, February 7, 2010 at 12:57pmI totally understand now! i had the 2x+4y=100...i just was blanking out about how to set up the 2nd part but I see now! Thank you so much! :)

- math -
**shaquille**, Monday, October 24, 2011 at 8:00pmwhat is the fraction lowes terms and a decimal 54

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