A quantity x varies directly with y and inversely with z. Which expression represents the constant of variation, k?

How is the number 5 divisible into 1,620

Matilda has 19 nickels, 43 dimes, 24 quarters, and 14 fifty-cent pieces. How much money does she have?

I am climbing up a mountain that has a lake at the bottom. The lake is 100 feet deep. If I have climbed one third of the way up the mountain and I am currently at 220 feet above lake level, what is the elevation change from the bottom of the lake to

A stunt man wants to drive a car off a ramp at an angle of 35∘ from the ground. He already has a ramp with an angle of 15∘. He plans to add a second ramp on top to increase the angle to 35∘. What angle measure does the second ramp need to have?

Sally has 56 apples and she wants to share for her 14 friends. How? Explain

A sports team has b teams. each team has 7 players. using b, write an expression for the total number of players in the tournament

Which expression is equivalent to 2.2-2.5 ?

Which expression is equivalent to - 4 (X+2) - 1/2 (2X-6

15 is less than or equal to 20+11+k/3 is less than or equal to 19

What is the value of x? Round your answer to the nearest tenth if necessary. 14.3 Right triangle whose two legs measure fourteen and x, and whose hypotenuse measures twenty