I have some white and black marbles in a box. There are 30 white marbles. There are 14 more white marbles than black marbles. How many black marbles do I have?

A cone has a radius of 2.5 inches and a height of 1.6 inches. What is the volume of the cone to the nearest tenth in. Use 3.14 to approximate pi

Lee's fifth-grade class has 1.4 times as many students as Fred's. If there are a total of 60 students, how many students does Fred's class have? How many students does Lee's class have

Solye for x. 8 (x + 1) - 3[X + 4) = 7 (2 - x)

For each statement below, determine if it is True or False. Justify your answer. (a) If a linear system has infinitely many solutions, there must be more equations than variables.

There are 5 slots, each containing the letters w, r, l, d or o. one letter is picked at random from each slot. what are the odds that the letters stored in these slots read the word world?

How How do you solve K+20=9k-4

If the volume of a cube-shaped box is 729 cubic inches, which equation would you use to determine how many 1-inch cubes could fit along one side?

Can - 6 1/30 be simplifyed

Comparing Account Balances In Exercise, $2000 is deposited in an account. Decide which account, (a) or (b), will have the greater balance after 10 years. (a) 6 1/2%, Compounded monthly (b) 6 1/4%, Compounded continuously

A popular pizza place has 15 toppings that can be placed on a pizza. You want to order a pizza made from 4 different toppings. How many possible combos?