Short answer = 20
Argument
Your chances of throwing a 6 = 1/6
Expected Throws = P(6) * Total Throws
Expected Throws = 1/6 * 120
Expected Throws = 20
Answer = 20 <<<<<
Answer:
The cost of each pair of shoes before the discount=$67.65
Step-by-step explanation:
Step 1
Use the expression below to determine original cost of the 2 pairs of shoes as follows;
A=O-R
where;
A=total bill after discount
O=original cost of 2 pairs of shoe
R=discount amount
In our case;
A=$110.50
O=unknown=x
R=15% of O=(15/100)×x=0.15 x
replacing;
115=x-0.15 x
115=0.85 x
x=115/0.85
x=135.294
Original cost of the 2 pairs of shoes=$135.294
Original cost of a pair of shoes=135.294/2=$67.65
The cost of each pair of shoes before the discount=$67.65
130 degrees clockwise - 75 degrees counterclockwise = 55 degrees clockwise.
2x + y = 3.....multiply by 2
x - 2y = -1
-----------------
4x + 2y = 6 (result of multiplying by 2)
x - 2y = -1
----------------add
5x = 5 <===
