At a concession stand, three hot dogs and 4 hamburgers cost $11.50 ; 4 hot dogs and three hamburgers cost $11.25 Find the cost of one hot dog and the cost of one hamburger.

What is the cost of one hot dog ?

How to find the volume of A composite figure

How many solutions does the system of equations have y=5x+7 and 3y-15x=18 A one B two C infinitely many D none

Nicole has $9 to spend on cards. She finds friends with the same amount of money to split the cost of a set. One set costs $27. Each friend gets the same number of cards. How many cards does each friend get?

Andrew has 9.39 but he needs 15.00 to make a purchase how much more does he need.

Prove by induction that in romberg integration rj1

The width and length of the bulletin board are whole numbers what is the width of the bulletin board if the length is 4 feet

Numerical WebAssign will do simple calculations for you, using +, -, *, /, parentheses, and e-notation. For example, if a question asks for half the sum of 246 and 388, you can enter " (246+388) / 2".

Ivan plans to reorganize the music on his MP3 players. He has 9 1/3 music of rock and hip-hop. After the change he is planning, he will have 2 4/5 times as many hours if rock and hip-hop music on his MP3 players.

2x+5d-9*2c+844+233+2*+78d

At a pen factory 3 out of 80 pens are defective. If the factory produces 7680 pens in a day, how many will be defective?