a sign in a gas station advertises gas at the rate of $3.39 9/10 per gallon. How many dollars goes a gallon cost, writing the price strictly as a decimal.
$3.399
To convert the price to decimal, you can drop the fraction.
The gas is advertised at $3.39 9/10 per gallon. Dropping the fraction, the price is $3.39 per gallon.
Therefore, a gallon of gas costs $3.39 written strictly as a decimal.
To convert the price from a mixed number to a decimal, you need to add the fractional part to the whole number.
Given that the gas is advertised at a rate of $3.39 9/10 per gallon, you can follow these steps to convert it to a decimal:
1. Take the whole number part, which is 3.
2. Next, divide the fractional part, 9/10, by 10 to convert it to a decimal. Divide 9 by 10: 9 รท 10 = 0.9.
3. Add the decimal value obtained in step 2 to the whole number part: 3 + 0.9 = 3.9.
Therefore, the cost of a gallon of gas, written strictly as a decimal, is $3.9 per gallon.