To find out how many hours Big Time Movers worked on New Year's Day, we can solve the equation you provided:
\[ 2.5(12.75x + 24.50) = 188.75 \]
First, we will divide both sides of the equation by 2.5:
\[ 12.75x + 24.50 = \frac{188.75}{2.5} \]
Now, calculate \( \frac{188.75}{2.5} \):
\[ 188.75 \div 2.5 = 75.5 \]
So we have:
\[ 12.75x + 24.50 = 75.5 \]
Next, we will subtract 24.50 from both sides:
\[ 12.75x = 75.5 - 24.50 \]
Calculating \( 75.5 - 24.50 \):
\[ 75.5 - 24.50 = 51 \]
Now we have:
\[ 12.75x = 51 \]
Next, we will divide both sides by 12.75:
\[ x = \frac{51}{12.75} \]
Calculating \( \frac{51}{12.75} \):
\[ x = 4 \]
Thus, Big Time Movers worked 4 hours on New Year’s Day.