John paid $222 for four hours of skiing and two hours boating. he paid $213 for two hours skiing and three hours boating. what is the cost pero hour of each activity?

Skiing costs $30 per hour and Boating costs $51 per hour.

Step-by-step explanation:

Let cost per hour of skiing be x and cost per hour of boating be y. Let's dissect the problem into 2 simultaneous equations.

"John paid $222 for four hours of skiing and two hours boating":

"He paid $213 for two hours skiing and three hours boating":

Now, if we solve for x in the 2nd equation and plug it in the 1st equation, we will have the value for y. Work shown below.

Hence, y = 51

Now, substituting this y value into the 1st equation and solving for x will give us the value of x.

Hence, skiing costs $30 per hour and boating costs $51 per hour.

not only in mathematics, scientific proof also are required in the other field of science. also maths proofs are of particular structure, containing steps and logics. so proving is like doing science, it is science. that's why it is important to prove. 

an inaccurate proof leads to errors, or stating results that are not accurate.  which wil mess the probelm up you dont want this

well we know there are 4 clubs in 52 cards so it’s replaced so it should be 3/51

step-by-step explanation: