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September 21, 2014

September 21, 2014

Posted by **Melissa** on Saturday, June 13, 2009 at 9:38pm.

B)One packet of biscuits and two cups of ice cream cost $8.00, while three packets of biscuits and one cup ice cream cost $9.00

1) write a pair of simultaneous equations in x and y to represent the given info above

Is the ans = 1x+2y=$8.00

3X+1y=$9.00

How do i find the cost of one biscuit and one cup of ice cream??

- Maths -
**drwls**, Sunday, June 14, 2009 at 8:40amThose are the correct equations, but you do not have to write the "1" as a coefficient. In algebra, that just isn't done.

Just solve these two equations:

x + 2y = 8

3x = y = 9

You can rewrite the first equation as

3x + 6y = 24

By subtracting the 2nd eq from the 3rd), you eliminate x and get

5y = 15

Take it from there.

- Maths -
**non**, Thursday, August 15, 2013 at 11:10pmThe longest loaf of bread measured 1.405 feet one and three fourths in inches. In length. It was cut into half slices thick. How many slices were there?

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