Well flat means open so 180°
180° - 50° = 130° is the answer
Cost of the admission tickets: 11.75x
Cost of the box lunch: 5x
Expressions to find the total cost = (1) ....... 11.75x + 5x
That is equivalent to: (2) .......... (11.75 + 5)x = 16.75x.
Now calculate the cost for x = 5 using both expressions:
1) 11.75(5) + 5(5) = 58.75 + 25 = 83.75
2) 16.75(5) = 83.75
Of course you got the same result with both expressions.
X=r-s/t
1.(S+tx)+(-s)=r+(-s)
2.s+tx-s=r-s
3.s-s+tx=r-s
4.tx=r-s
5.tx/t=r-s/t
6. x=r-s/t
1. x to the 5th power
2. x to the 9th power
3. 1 divided by x to the 5th power
4. 1
5. x to the 6th power
