In a bag, There are red and blue cubes in the ratio 4:7.I add 10 more red cubes to the bag. Now here are red and blue cubes in the ratio 6:7.How many blue cubes are in the bag?

Another type of subtraction equation is 16-b=7. explain how you would sole this equation then solve it.

There are 45 questions on your math exam. you answered 810 of them correctly. how many questions did you answer correctly?

1. an economy consists of three workers: larry, moe, and curly. each works 10 hours a day and can produce two services: mowing lawns and washing cars. in an hour, larry can either mow one lawn or wash one car; moe can either mow one lawn or wash two cars; and curly can either mow two lawns or wash one car. a. calculate how much of each service is produced under the following circumstances: a. all three spend all their time mowing lawns. b. all three spend all their time washing cars. c. all three spend half their time on each activity d. larry spends half of his time on each activity, while moe only washes cars and curly only mows lawns b. using your answers to part a, draw a production possibilities frontier and label points a, b, c, and d on your graph. explain why the production possibilities frontier has the shape it does. c. are any of the allocations calculated in part a inefficient? explain.