Tuesday

March 31, 2015

March 31, 2015

Posted by **Charmin** on Thursday, October 20, 2011 at 9:20pm.

- Math (Please Help) -
**Steve**, Friday, October 21, 2011 at 11:55amtotal cost for x,y

50x + 25y = 350

total cost for new x,y

50(2x) + 25(y/2) = 475

Putting it together:

50x + 25y = 350

100x + 25/2 y = 475

or, with no ugly fractions

50x + 25y = 350

200x + 25y = 950

Subtract top from bottom

150x = 600

x = 4

y = 6

50(4) + 25(6) = 350

50(8) + 25(3) = 475

**Answer this Question**

**Related Questions**

algebra - An executive bought 300 stamps for $73.80. The purchase included 15 ...

Algebra - a colection of stamps consist of 2 cent stamps, 8 cent stamps, and 14 ...

math - suppose you bought some 32 cent stamps and some 20 cent stamps. you spent...

Math(Algebra) - Joe, using only .32 cent stamps and .20 cent stamps, put $3.36 ...

algebra 1 - plz explain how to do this in detail: using only 39 cent and 24 cent...

Math - On a Christmas package, Audrey needs to use only 40-cent stamps and 16-...

math - A stamp collection consists of 3, 8, and 15 cent stamps. The number of 8 ...

Math - On a Christmas package, Audrey needs to use only 40-cent stamps and 16-...

Math - On a Christmas package, Audrey needs to use only 40-cent stamps and 16-...

Math - On a Christmas package, Audrey needs to use only 40-cent stamps and 16-...