Book Maths Puzzle Percentage

You took a quiz that had 20 questions on it. You got 70% of the questions right. How many questions did you get right?

Read Solution (Total 0)

Book Other Question

The table used for table tennis is 4 ft longer than it is wide and has a area of 45 ft^2. What are the dimensions of the table? Sharon's revenue $R on the sale of fruitcakes is determined by the formula R = 50x-x^2. Her cost $C for producing x fruitcakes is given by the formula C=2x+40. For what values of x is Sharon's profit positive?