Answer:Solve by simplifying for both sides of the equation, then isolating the variable.
Step-by-step explanation: x=0.4174294
All 3 angles of a triangle add up too 180, so 80+55= 135, 180-135 is 45, so the value of x is 45
Total number of cyclists = 5
And total number of prizes = 3
We have to find number of different ways can the 3 prizes be awarded .
For the first price , we have 5 options, for the second prize, we have 4 options and for the third prize, we have three options.
So total number of ways are
The algebraic expression would be 4 - n, I believe.