- A bronze alloy consists of copper and tin (#1543)
A bronze alloy consists of copper and tin in the ratio of 11 to 2, respectively. If the bronze weighs 52...
rational expressions, expressions
- A marketing manager travels (#61)
A marketing manager travels 1080 miles in a corporate jet and then an additional 240 miles by car. If the car ride takes one hour longer than the jet ride takes, and if the rate of the jet is 6 times the rate of the ...
simplifying rational expressions, rational expressions, rational numbers, expressions, number sense, numbers
- At a well known university (#825)
At a well known university, 1/4 of the undergraduate students commute, and 1/3 of the graduate students commute. One-tenth of the undergraduate students drive more than 40 miles daily, and 1/6 of the graduate students drive more than 40 miles daily. If there are twice as many underrgraduate students as there are graduate ...
rational expressions, rational numbers, expressions, number sense, numbers
- It takes doug 6 hours to roof the house (#1861)
It takes doug 6 hours to roof the house. If his son helps it takes 4 ...
rational expressions, expressions
- It takes one man 8 hours to do a certain job (#1998)
It takes one man 8 hours to do a certain job. After the first man has been at work for 3 hours, another man is put to work. The two men then complete the job in 2 more ...
rational expressions, expressions
- it takes three hours for a pipe (#1269)
it takes three hours for a pipe to fill a tank of water if the tank does not leak. Our tank has a crack that draines the tank in 5 ...
numbers, number sense, rational expressions, expressions, rational numbers
- Jaime bought a case of concert T-shirts (#550)
Jaime bought a case of concert T-shirts for $450. She kept two for herself and sold the rest for $560, making a profit of $10 on each ...
rational expressions, rational numbers, expressions, number sense, numbers
- Jim can run 5 miles per hour (#2334)
Jim can run 5 miles per hour on level ground on a still day. One windy day, he runs 15 milkes with the wind, and in the same amount of time runs 67 miles against the ...
rational expressions, expressions
- Kristin can type a 50 page paper (#2349)
Kristin can type a 50 page paper in 8 hours. Last month Kristin and Courtney together typed a 50 page paper in 6 ...
rational expressions, expressions, work rate, rate
- Melanie can paint a certain barn (#824)
Melanie can paint a certain barn by herself in x days. Her helper Melissa can paint the same barn by herself in 2 x days. Write a rational expression for the fraction of the barn tht they complete in one day by working together. Evaluate the expression for x =5
rational expressions, rational numbers, expressions, number sense, numbers, work rate, rate
- Mickey and Minnie Mouse can eat a piece of cheese (#1918)
Mickey and Minnie Mouse can eat a piece of cheese in 9 minutes. Mickey alone can eat the cheese in 16 ...
adding rational expressions, rational expressions, expressions
- Mr. Jenkins can dig a ditch (#39)
Mr. Jenkins can dig a ditch in one hour less then his son. Working together, they can do the job in 2\3 hour. How long does it take for ...
simplifying rational expressions, rational expressions, rational numbers, expressions, number sense, numbers, work rate, rate
- multiplying rational expressions (#112)
Maria's favorite candy bar has 230 claories. the nutrition label sates that 7/8 of the calories come from ...
multiplying rational expressions, expressions, rational numbers, rational expressions, numbers, number sense
- One water pipe can fill a tank (#3174)
One water pipe can fill a tank in 90 minutes while a second pipe can fill the tank in 60 ...
rational expressions, expressions
- simplifying rational expressions (#133)
Mario can do the work in X hours. Luigi takes one more hour than Mario to do the work. Together they finish the work in 100 ...
simplifying rational expressions, rational expressions, rational numbers, expressions, number sense, numbers, work rate, rate
- The additive inverse of a number (#1474)
The additive inverse of a number divided by twelve is the same as one less than three times its ...
rational numbers, rational expressions, expressions, number sense, numbers
- The reciprocal of a number (#1074)
The reciprocal of a number plus the reciprocal of three times the number equals 1/3
rational expressions, expressions
- Working alone it takes George 5 hours (#3428)
Working alone it takes George 5 hours to decorate the hall for an event. Working alone it takes Wanda 4 hours to decorate the hall for an ...
expressions, rational expressions, work rate, rate
- Your recipe calls for 2 teaspoons of baking powder (#1631)
Your recipe calls for 2 teaspoons of baking powder but all you have is baking soda. You know that you can substitute two parts cream of tartar and one part baking ...
expressions, rational expressions
