Why do you multiply both sides by 2? What do you know when you know the value of x.

Ben wants to play a carnival game that costs $2. in his pocket he has 5 red tickets worth 35 cents each, and 15 blue tickets worth 10 cents each. which of the following systems of inequalities correctly represents the constraints on the variables in this problem? let represent the red tickets and b represent the blue tickets.

In the 30-60-90 triangle below side s has a length of and side r has a length

How do you solve a question like this?