Algebra: Worksheet as part of HW#14

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Algebra: Worksheet as part of HW#14 Powered By Docstoc
					Algebra: Homework #15                                                 Name: __________________
                                                                                   Date: _______
1.) The length of a rectangle is 4ft more than the width. The perimeter is 80ft. Find the width and
length of the rectangle.




2.) The sum of three consecutive integers is 1206. Find the integers.




3.) Two trains leave the station at the same time going in opposite directions. One of them travels
40mph and the other travels at 50mph. In how many hours will they be 135 miles apart?

                                  Distance                     Rate                      Time
Slow Train

Fast Train




4.) Two trains leave the station at the same time heading in the same direction. One train travels at
42mph and the other travels at 35mph. After how many hours will they be 31.5 miles apart?

                                  Distance                     Rate                      Time
Slow Train

Fast Train
5.) Batman and Robin leave Gotham City at the same time and travel in opposite directions. Batman
travels in the Batmobile at 60 km/hr and Robin travels in his Ford Pinto at 10km/hr. In how many
hours will they be 420 km apart?

                                  Distance                    Rate                      Time
Batman

Robin




6.) Bart Simpson leaves for school on his skateboard traveling at 6mph. After school, Bart gets a ride
from Marge and averages 14mph. If the round trip took Bart 1 hour, how long did it take him to get
to school?

                                  Distance                    Rate                      Time
To school

To home




7.) A lab technician has one solution that is 60% chlorinated and another that is 40% chlorinated.
How much of each solution is needed to make a 100L solution that is 50% chlorine?
                                   volume                       %                   Amt of chlorine
 Solution 1

Solution 2

Final Solution
8.) A 50-gallon barrel of milk is 6% butterfat. How much skim milk (no butterfat) should be mixed to
make milk that is 3% butterfat?
                                   Volume                    %                 Amount of butterfat
 Solution 1

Solution 2

Final Solution




9.) Solution A is 50% acid and solution B is 80% acid. How much of each should be used to make
100mL of a solution that is 68% acid?
                                  Volume                    %                  Amount of acid
 Solution 1

Solution 2

Final Solution




10.) A coffee shop mixed Brazilian coffee worth $5 per kilo with Turkish coffee worth $8 per kilo.
The mixture is to sell for $7 per kilo. How much of each type of coffee should be used to make 300kg
of the mixture?
                                 Weight in kg             Price per kg               Total price
Brazilian coffee

Turkish coffee

Mixture
11.) A solution containing 30% insecticide is to be mixed with a solution containing 50% insecticide
to make 200L of a solution containing 42% insecticide. How much of each solution should be used?
                                  Volume                       %                Amount of insecticide
 Solution 1

Solution 2

Final Solution




12.) A solution containing 28% fungicide is to be mixed with a solution containing 40% fungicide to
make 300L of a solution containing 36% fungicide. How much of each solution should be used?
                                 Volume                       %                 Amount of fungicide
 Solution 1

Solution 2

Final Solution




13.) The Nut Shoppe has 10kg of mixed cashews and pecans, which sell for $8.40 per kilogram.
Cashews alone sell for $8 per kilogram, and pecans sell for $9 per kilogram. How many kilograms of
each are in the mix?
                                Weight in kg               Price per kg            Total price
 Cashews

Pecans

Mixture

				
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