Saturday

September 20, 2014

September 20, 2014

Posted by **Donna** on Saturday, August 23, 2008 at 4:56pm.

$ 177= 11 Books 12 Pens

Cost of b=

P=

- Math -
**drwls**, Saturday, August 23, 2008 at 5:04pm3 p + 3b = 45

11 b + 12 p = 177

12 b + 12 p = 180

Subtract the second equation from the third.

b = 3.

9 + 12 p = 177

12 p = 168

p = ?

- Math -
**drwls**, Saturday, August 23, 2008 at 7:58pmI made a mistake near the end.

3p + 9 = 45

3p = 36

p = 12

**Answer this Question**

**Related Questions**

math - write an expression to represent each total and then simplify it cost of ...

Math - Jane wishes to buy books for her children. At one shop a book costs sh....

math - a number of teachers were to receive 6 pens each ,but needed 4 more pens ...

math - A salesperson bought a caase of pens.On Monday, he sold 1/2 of the pens....

math - A college bookstore ordered six boxes of red pens. The store sold 32 red ...

Quadratic Functions in Algebra - Suppose C(x)=x^2−6x+20 represents the ...

algebra - A college bookstore ordered six boxes of red pens. The store sold 37 ...

pre algebra - A college bookstore ordered 6 boxes of red pens. The store sold 32...

algebra - A pet boarding facility wants to build two adjacent pens of equal size...

math,(fraction) - Mr Lim put some red pens and blue pens into a box.The ratio of...