Find the Cost of purchasing 15 gallons of each of the fluids below.

Question

Bottled Soda at $2 for 1 Liter

 

Gasoline at $2.50 for 1 gallon.

 

Printer ink at $30 for 42 mL.

 

Milk at $3 for 1 gallon.

Answer 1

There are approximately 3.785 liters in a gallon. So, let's convert each of those amounts to gallons:

 

1 L × 1 g / 3.785 L = 1/3.785 g = 0.264 g

42 mL × 1 L / 1000 mL × 1 g / 3.785 L = 42/(1000×3.785) = 0.0111 g

 

 

Next, we'll find the cost per gallon by dividing cost per number of gallons:

 

Bottled soda is $2/0.264 g = $7.58 per gallon

Gasoline is $2.50/1 g = $2.50 per gallon

Printer ink is $30/0.0111 g = $2702.70 per gallon

Milk is $3/1 g = $3 per gallon

 

 

For the cost for fifteen gallons, we need only multiply the cost per gallon by 15:

 

$7.58×15 = $113.70 for 15 gallons of bottled soda

$2.50×15 = $37.50 for 15 gallons of gasoline

$2702.70×15 = $40,540.50 for 15 gallons of printer ink

$3×15 = $45 for 15 gallons of milk