Monday

March 2, 2015

March 2, 2015

Posted by **Katelyn** on Sunday, October 28, 2012 at 7:31pm.

- Algebra -
**PsyDAG**, Monday, October 29, 2012 at 5:40pm3s + 4p = 123

3s + 2p = 85.5

Subtract second equation from the first.

2p = 37.5

p = 18.75

You should be able to work it from here.

- Algebra -
**Mr.Mathews**, Tuesday, January 14, 2014 at 6:41pm3 sweatshirts and 2 sweatpants for 85.50 --> 3x+2y=85.50

3 sweatshirts and 4 sweatpants for 123 --> 3x+4y=123

solve for one of the variables in either equation (in terms of the other variable) and insert the answer into the other equation to get an actual value of the other variable

3x+2y=85.5

3x=85.5-2y

x=(85.5-2y)/3

x=28.5-(2/3)y --> insert the "x" value into the other equation to solve for "y"

3(28.5-(2/3)y)+4y=123

85.5-2y+4y=123

2y=37.5

y=18.75 --> now insert the "y" value into the first equation to get an actual value for "x"

3x+2(18.75)=85.5

3x+37.5=85.5

3x=48

x=16

FINAL ANSWER:(x=16 and y=18.75)

**Answer this Question**

**Related Questions**

math - During a sale at the local department store, you buy three sweatshirts ...

7th grade math Ms. Sue last two questions thanks - 15. In Store A, a book that ...

statistics - A sample of 275 shoppers at a large suburban mall were asked two ...

math - A store has 2 times as many hooded sweatshirts as crewneck sweatshirts. ...

English - 1. Where do you buy a scarf? -I buy it at the department store. 2. ...

Algebra 1 - A store offers a 15% discount on all items in the store during a ...

8th grade math - Julianne plans to take advantage of the after Thanksgiving sale...

math - A store sold 64 sweatshirts one day. Of these, 12 were gray. The store ...

math - the store were janice and kanisha shop is having a sale on summer clothes...

math - A store offers a 15% discount on all items in the store during a sale. ...