How many solutions does this linear system have?

y = x + 2

6x - 4y = - 10

7/5 x - 3/12 + 7/6 + 7/5 x 1/4

In a school there are 60 teachers and 1200 students. 30% of students are bilingual 30% of students are bilingual. 15% of the teachers are bilingual. how many bilingual students and teachers are there altogether?

Whats the answer to y - 2 = (x - 3)

Each cake tin is 25cm in diameter. How many cake tins fit on a 600mm X 500mm tray

Bob and Ted are in the plumbing business. Bob can do the plumbing hook-up for a new house in 4 hours; Ted does the same job in 6 hours. If they work together, how long will they take to hook up the plumbing in one house? 2.1 hours 2.4 hours 5 hours

A test consists of 30 problems and students are told to answer any 10 of these questions. In how many different ways can they choose the 10 questions?

3x2 + 14x - 49 = 0 solving the equation by factoring

How many times heavier is a 16 1/2 pound rockthen a 10 1/2 pound rock

Ben has a marble collection. three fifths of the marbles are solid colored marbles. one fifth of the marbles are cats eyes. what fraction of the marbles are either solid colored or cats eyes

Express the solution set of the equation in set notation. x - 2 = 10