Step-by-step explanation:
To find the cost of the tip, we need to find 120% of 39.50.
120% = 100% (order) + 20% (tip)
Let's use fractions. 39.50 can be put over 1, and 120 can be put over 100.
Equation:
[tex]\frac{39.50}{1} \times \frac{120}{100} =?[/tex]
Multiply:
[tex]\frac{39.50}{1} \times \frac{120}{100} =\frac{4740}{100}[/tex]
Divide 4740 and 100 by 100:
[tex]\frac{4740 \div 100}{100 \div 100} = \frac{47.4}{1}[/tex]
The total cost of the food is $47.40.