Solve the simultaneous equations 7x+5y=32

3x+4y=23

A Toronto blue jays baseball player chews 16 pieces of chewing gum per game. Write an algebraic expression to show how many pieces of gum he might chew in n games.

Given: 3r + 2[3 (r-1) + 2] = 2 (3r + 4) prove: r = 10/3

Simplify sin (2x+7y) + sin (2x-7y)

Which set of statements always have the same truth value A) Conditional and Converse B) Conditional and Inverse C) Inverse and Contrapositive D) Conditional and Contrapositive

3y/4=15 what is the equation using the concept of balancing

A newspaper reporter wants to know how popular the hobby of bird watching is in the city. He asked people at the local bird refuge if they watched birds as a hobby. Which of the following best explains whether the reporters data is valid or not?

I am very confused on how to figure out if y = 3/4x is proportional?

Alison wants to buy a mountain bike for $339.12. If she saves $28.26 each month, in how many months will she be able to buy the bike?

At 12 o'clock the temperature was 7°C. The temperature decreased by - 20°C. What is the new temperature?

Ashleys rentals charges $27.50 per hour to rent a surfboard and a wetsuit. Darlas surf shop charges $23.25 per hour to rent a surfboard plus $17 extra for a wetsuit.