richard was hitting in the batting cage. out of 100 balls, he hit 42 of them. what percentage did he hit?

Solve - 2x2 + 3x - 9 = 0. (solving quadratic equation with complex numbers) ...

Which shows solutions to X+4y=9 if X and y must be whole numbers? A. { (0,9) (1,5) (2,1) } B.{ (2,1) (1,6) (0,9) } C.{ (1,2) (5,1) (9,0) D.{ (0,9) (1,4) (2,1)

2:3 14:21are these ratios equivalent

John is twice as old as Mary. The sum of their ages is 52. How old is Mary? If J = John's age and M = Mary's age, which system of equations could be used to solve the problem? 2J = M and J + M = 52 J = 2M and J + M = 52 J = 2M and JM = 52

4. If 90 is 30% of a number, what is 200% of the number?

Put the following equation in slope-intercept form: 2x+4y=12

1 kg = how many grams?

Curtices schools has 1,575 students. the student to teacher ratio is 15:1. how many teachers are at curtices school?

A wall that is 12 feet high on the building is 36 centimeters high on the model. Find the height on the model of a door that is 9 feet high on the building. I already solved this one. The answer is 27. Im having trouble with part B.

Distribute 50 (2 + 3)