in the last test 40% of all students in Mrs. Well's class got grade A. How many students are studying in this class, if there were 28 A's on the test?

At the start of the day there are 78 boxes of DVDs in a warehouse. Each box has 116 DVDs. Then 19 of the boxes are shipped. Now how many DVDs are left in the warehouse?

1/3x+y=9, - 2x+2y = - 6 ... what is x and y, using the substitution method?

You have 1 case of soap bars and there are 150 bars in a case. you have 300 bars of soap per day. how many cases do you need to order to have enough for 7 days

A Student found the product of 5x10^8 and 6x10^5 to be 3x10^13. What is the error? What is the correct product?

What is ten thousand more than 300,000 + 99,000+5,000+40 is somebody tell me the Answer

The probability that a train leaves on time is 0.8. The probability that the train arrives on time and leaves on time is 0.24. What is the probability that the train arrives on time, given that it leaves on time? 0.3 0.8 0.16 0.24

A paperback book is shaped like a rectangular prism. The cover of the book measures 5 inches by 8 inches, and the book is 2 inches thick. Calculate the volume of the book.

Mrs. Travis wants to have a clown deliver balloons to her secretary's office. Clowns R Fun charges $ 1.25 per balloon and $ 6 delivery. Singing Balloons charges $ 1.95 per balloon and $ 2 for delivery. What is the minimum number of balloons? Mrs.

2 other decimal forms of 6.7

Describe a general method for deciding which variable to eliminate when using linear combinations. can all systems be solved by linear combinations? Explain