-eight out of 200 students are 12 or 13 years.   Half of the rest are older than 13years and the other half are younger than 12 years. What percent of the students are 12 and 13? What percent of the students are older than 13?  How many students are younger than 12?

Algebra and Trigonometry (6th Edition)
6th Edition
ISBN:9780134463216
Author:Robert F. Blitzer
Publisher:Robert F. Blitzer
ChapterP: Prerequisites: Fundamental Concepts Of Algebra
Section: Chapter Questions
Problem 1MCCP: In Exercises 1-25, simplify the given expression or perform the indicated operation (and simplify,...
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Fifty-eight out of 200 students are 12 or 13 years.   Half of the rest are older than 13years and the other half are younger than 12 years. What percent of the students are 12 and 13? What percent of the students are older than 13?  How many students are younger than 12? 

 

the fish market is selling several different kinds of fish.  There are no prices listed.  You ask about the prices, but the fish seller will only tell you this:
•         A pound of salmon and a pound of bass are $12.
•         A pound of bass and a pound of swordfish are $10.
•         A pound of salmon and a pound of swordfish are $8.
•         A pound of swordfish and a pound of catfish are $5.
How much is each pound of fish?  Show your work.  (Each price per pound is a whole dollar amount.)  

 

A rectangular polygon consists of 8   squares placed side by side.  If the perimeter of the rectangle is 180 inches, what is the area of the rectangle in square inches? 

 

 A well is 24 feet deep and a snail climbs up 4 feet each day and slides back 2 feet at night.  How many days will it take him to reach the top of the well? Please note: When the snail reaches the top, it does not slide back.  Show your work. 

 

An ice cream stand has nine different flavors. A group of children come to the stand and each buys a double scoop cone with two different flavors of ice cream. If none of the children choose the same combination of flavors, and every different combination of flavors is chosen, how many children are there? FLAVOURS are: 1. Vanilla, 2. Maple, 3. Chocolate, 4. Tiger, 5. Raspberry, 6. Strawberry, 7. Coffee, 8. Moon Mist, 9. Cherry Vanilla.  Explain your thinking. 

 

A baby rabbit moves 5 inches forward with each hop and his mother moves 14 inches forward with each hop. After the mother and baby each hop 10 hops in the same direction, the mother stops and waits for her baby to catch up. How many hops does the baby have to take to catch up?  Explain your thinking. 
 

 


There are 6 pails, 3 of the pails are filled with water. Can you move only one pail and make a pattern of: full pail, empty pail, full pail, empty pail, full pail, empty pail? Explain your reasoning. 

 

Tim and his dad build a sandcastle. They start at 10:30AM and build for 2 hours and 15 minutes. What time are they finished? High tide comes in at 3:35 and washes their castle away. How long was the completed castle standing? Give the time in hours and minutes.  Explain your thinking. 

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