Posted by AT on Thursday, February 4, 2010 at 10:24am.
Jim paid $3.99 for a 14-ounce bag of cookies. What was the
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 1:04am
More 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.
---- = ----
14x = 16(3.99)
Divide both sides by 14, giving:
x = (16/14)3.99
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.
Answer This Question
More 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...
- Math - 1. The Suarez family paid $15.75 for 3 movie tickets. How much would they...
- 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 complicted question please help - 1. a box of crackers has 24 grams of fat....
- Math - How do you solve this: A 20-ounce bag of popcorn costs $2,80. If the unit...