Wednesday

July 30, 2014

July 30, 2014

Posted by **AT** on Thursday, February 4, 2010 at 10:24am.

unit cost per pound?

- mathematics -
**drwls**, Thursday, February 4, 2010 at 11:32am$3.99 / (14/16 lb) = (8/7)*($3.99) = $4.56/lb

- mathematics -
**Anonymous**, Friday, February 5, 2010 at 1:04amMore than one way to skin a cat. Proportions come up a lot and this can be solved as one.

State the relationship you need verbally.

"3.99 is to 14, as x is to 16"

Then set up a proportion.

3.99 x

---- = ----

14 16

Cross-multiply, giving:

14x = 16(3.99)

Divide both sides by 14, giving:

x = (16/14)3.99

Reduce:

x = (8/7)3.99

Finally, you need to pull out your calculator.

x = 31.92/7

x = 4.56

That is the cost per 16 ounces: that is, per pound.

**Related Questions**

consumer math - Jim paid $3.99 for a 14-ounce bag of cookies. What was the unit ...

consumer math - Guy paid $3.59 for a 10-ounce bag of cookies. What was the unit...

math - a 50 pound bag of glossy coat horse feed cost $23.50. A 25 pound bag cost...

Economics - Jim buys only milk and cookies. a. In year 1, Jim earns $100, milk ...

Math - A can of worms for fishing costs $2.60. There are 20 worms in a can. What...

math - Find three brands of a grocery item that you purchase and figure the ...

math - An 11 ounce bag of chips costs $1.99 what is the cost per ounce rounded ...

Math - How do you solve this: A 20-ounce bag of popcorn costs $2,80. If the unit...

math - a 20-ounce bag of popcorn costs $2.80. if the unit price stays the same, ...

math - A) which is the better value a 12 ounce jar of honey for $2.25 or an 18 ...