Marco has a bag of 50 colored marbles. there are 12 blue marbles, 18 black marbles, and 20 red marbles. what is the ratio of the numbers of black marbles to the number of blue marbles

Which of the following pairs of lines are perpendicular? Select all that apply. A. y=2/3x+4 and y=2/3x-8 B. y=2/3x-8 and y=-3/2x-8 C. y=x+2 and y=-x+3 D. y=3x+2 and y=3x-2 E. y=3 and y=4 F. y=4/5x-8 and y=-5/4x+3

The first and third digits of Q are odd. The second and fourth digits of Q are even. The fourth digit is two times the first digit. The first and second digits add to seven. The second and third digits add to nine.

The legs of a right triangle are 10 cm and 24 cm. What is the length of the hypotenuse?

What is the area, in square millimeters, of a right triangle with a hypotenuse of 68 millimeters and a leg of 60 millimeters?

In 2018, a nation's population was 10 million. Its nominal GDP was $40 billion, and its price index was 100. In 2019, its population had increased to 12 million, its nominal GDP had risen to $57.6 billion, and its price index had increased to 120.

The volume of a pyramid that fits exactly inside a cube is 10 cubic feet what is the volume of a cube

Mr. bailey purchased some groceries that cost d dollars. he paid $50 bill. write an expression for the amount of he will receives

In a survey of 612 students, 46% said they would flunk 6th grade on purpose just to stay in Mr. Cirillo's class. How many people would not flunk Mr. Cirillo's class on purpose.

A deposit of $5,000 is made into a savings account that offers 7.5% annual interest. Which equation models the amount of money in the account after t years? P (t) = 5,000 (1.75) t P (t) = 5,000 (1.075) t P (t) = 5,000 (0.925) t P (t) = 5,000 (0.

5n = - 20. How do I solve this equation?