Question

Which unit conversion allows you to convert 21.0 gallons into milliliters?

Some English and English-metric unit relationships: 1 liter = 1.057 quarts, 1 gallon = 4 quarts

Answer 1

To convert 21.0 gallons into milliliters, multiply by the conversion factors: 4 quarts/gallon and 946.353 milliliters/quart.

Step-by-step explanation:

To convert 21.0 gallons into milliliters, we can use the following unit conversions:

1 gallon = 4 quarts

1 quart = 946.353 milliliters

Therefore, to convert gallons to milliliters, we multiply by both conversion factors:

21.0 gallons x 4 quarts/gallon x 946.353 milliliters/quart = 79,495.068 milliliters

Answer 2

Step-by-step explanation:

we are given

there are in 0.073 gallons

we can see that there are two non-zero places after decimals

so, there are two siginificant figures

step-1: Change gallons to quarts

we know that

1 gallon = 4 quarts

so, we can write as

step-2: Change into liter

we know that

1 liter = 1.057 quarts

or

step-3: Change into millilitre

we know that

Since, it is asking for only two significant figures

so, we can also write as

...................Answer