A motorboat that travels with a speed of 20 km/hour in still water has traveled 20 km against the current and 180 km with the current, having spent 8 hours on the entire trip. Find the speed of the...

jessica rented 1 video game and 3 movies for a total of \$11.50 what amout, in dollors,did jessica pay to rent each movie the video game cost \$4.75 to rent  the movies cost the same amount...

jessica rented 1 video game and 3 movies for a total of \$11.50  what amout, in dollors,did jessica pay to rent each movie

Derek wants to build a rectangular enclosure for his animals. One side of the pen will be against the barn, so he needs no fence on that side. The other three sides will be enclosed with wire fencing...

Suppose that you have 360 feet of rope and want to use it to make a rectangle. What dimensions should you make your rectangle if you want to enclose the maximum possible area?

Ethan wants to build a rectangular enclosure for his animals. One side of the pen will be against the barn, so he needs no fence on that side. The other three sides will be enclosed with wire fencing...

the number of books Jason has is 34 fewer than 3/5 if the number of books mr Perez has. They have a total of 2566 books altogether. How many books does Jason have?

this is on a 4 graders home work and im felling kinda stupid lol   frank has played in 5 times as many games as his cousin nelson. if frank has played in 20 more games than nelson,...

In a recent year, companies spent a total of \$89.8 billion on newspaper, television, and radio ads. The total amount spent on television and radio ads was only\$3.0 billion more than the amount spent...

The start up division made 80% of 1/2 of the established division. The start up divisions growth was 1/3 greater than the established divisions. if the divisions made \$280,000 combined, how much did...

the formula L=p[1-(1+(r/n)-nt)/(r/n)] gives the amount of a long L in terms of the amounts of each payment P, the intrest rate is r, the number of payments per year n, and the number of years...

Johnny was able to drive an average of 15 miles per hour faster in his car after the traffic cleared. He drove 38 miles in traffic before it cleared and then drove another 170 miles. If the total...

For every problem answered correctly on an exam, 4 points are awarded. For every incorrect answer, 5 points are deducted. In a 10-question test, a student scored 22 points. How many correct and incorrect...

A light aircraft travels 6 miles per hour less than twice the speed of a bus. If the bus can travel 186 miles in the same time it takes the aircraft to travel 354 miles, then what is the average speed...

A music website charges x dollars for individual songs and y dollars for entire albums. Person BA pays \$25.92 to download 6 individual songs and 2 albums. Person B pays \$33.93 to download 4 individual...