Tuesday

November 25, 2014

November 25, 2014

Posted by **miki** on Wednesday, March 28, 2012 at 5:04pm.

- math -
**Reiny**, Wednesday, March 28, 2012 at 5:48pmthe ratios of

black : blue : red = 54:36:30 = 9:6:5

let the number black be 9x

let the number of blues be 6x

let the number of reds be 5x

9x + 6x + 5x = 20

20x = 20

x = 1

so 9 black, 6 blue, and 5 red

**Answer this Question**

**Related Questions**

math - jared bought a package of pens containing 20 pens. If 3/4 of the pens had...

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

math - A box contains 4 red pens, 5 blue pens, and 9 green pens. Two pens are ...

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

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...

Math - Bella keeps a supply of red, blue, and black pens in a drawer. The drawer...

math - Bella keeps a supply of red, blue, and black pens in a drawer. The drawer...

math - Bella keeps a supply of red, blue, and black pens in a drawer. The drawer...

maths - Bella keeps a supply of red, blue, and black pens in a drawer. The ...