Sunday

March 29, 2015

March 29, 2015

Posted by **jade** on Friday, November 1, 2013 at 1:45am.

- math -
**Graham**, Friday, November 1, 2013 at 3:33amLet the folders cost f.

Let the rulers cost r.

Sarah paid: 8f + 3r

Lea paid: 8r + 3f

Sarah paid 1.25 more than Lea.

8f + 3r = 1.25 + 8r + 3f

5f = 1.25 + 5r

f = 0.25 + r

The rulers cost: r = 0.45

.: f = 0.70

Each folder costs 70 cents.

Check.

8*(0.70) + 3*(0.45) = 6.95

1.25 + 8*0.45) + 3 *(0.70) = 6.95

Okay!

**Answer this Question**

**Related Questions**

Math - Sarah bought 8 folders and 3 rulers. Lea bought 8 rulers and 3 folders. ...

math - Serena paid $20.20 for 36 rulers and folders. She bought 16 more folders ...

Math - Serena paid $20.20 for 36 rulers and folders. She bought 16 more folders ...

phms - Serena paid $20.20 for 36 rulers and folders. She bought 16 more folders ...

Algebra 2 - Serena paid $20.20 for 36 folders. She bought 16 more folders than ...

Math Help - A shop owner bought 30 folders and some journal. He paid @82.50 for ...

Maths P5 - Cindy went to the store with just enough money to buy 11 files....

Math - Your teacher has a large box containing an equal number of red and blue ...

math - Two rulers are the same length. Ruler A is divided into 357 units while ...

Math - 5.Mrs.Sandoval has 60 folders, 45 scissors, and 30 rulers. What is the ...