Black pencils cost 5 cents each and coloured pencils 7 cents. If two dozen assorted pencils cost 1.34 dollars, how many are black and how many are coloured?
Black pencils cost 5 cents each and coloured pencils 7 cents. If two dozen assorted pencils cost 1.34 dollars, how many are black and how many are coloured?
Represent one of the unknowns below with a variable. Then represent the other unknown in terms of that variable.
I have to solve it and write an equation.
find the cost of each
Suppose in a class you have test grades of 65 and 73, an 85 on the paper, and a homework grade of 40. [Assume: the three tests are worth 70%, the homework 20% and the paper 10%] What grade must you...
Variation word problem for my class.
what is the maximum area of the rectangle? what value of x gives the maximum area? Initial equation is 3x(5-2x) Then -6x^2+15x Do I use quadratic formula?&nbs...
I really need help!
3 bats fly at 5 miles/hour how long will it take the bats if they fly at 15miles/hour
Max spends a total of 150 minutes studying math, science, and social studies. He spends twice as much time on his math as on either his science or social studies. How much time does Max spend studying...
(x+6)+y=31 is what i think the equation is but i'm not sure
There are 31 people going, and 4 including the driver could fit in each car. He announced to the group leader that 7 cars would be needed. That is not correct. What is the mistake and how many...
Can someone please help me because I'm confused?
Your friend works as a waitress at a local restaurant. Her income consists of an hourly wage plus tips. On Wednesday, your friend earned $25 in tips over a 5 hour period. On Friday, your...
Every weekend, you ride your bicycle on a forest preserve path.The path is 24 miles long and ends at a waterfall,at which point you relax and then make the trip back to the starting point. One weekend,...
frank drove 696 miles in 12 hrs. at the same rate how long would it take him to drive 522 miles?
Terry is mixing a punch which contains 3 liters of juice for every 2 liters of soda. If he wants to make 21 liters of punch, how much juice does he need? A car's...
On a map with a scale of 1 inch + 100 miles, the distance between two cities is 7.5 inches. If a person travels 55 miles per hour, how long will it take to travel from one town to the other...
A college student is traveling to santo domingo on spring break. He purchased 21 traveler's check worth $510, in denominations of $10, $40, or $50. He bought 4 times as many as $10 checks as $50 checks...
I have no idea how to solve this...Multiply 1 2/5 by 5/8? or by 3/8 which is the distance left?