A sign at a gas station advertised gas at the rate of $3.39 9/10 per gallon. How many dollars does a gallon cost, writing the price strictly as a decimal?
To write the price strictly as a decimal, we try to eliminate the fraction. Since 9 is the denominator, we can write 9/10 as a decimal by dividing 9 by 10: $3.39 + \frac{9}{10} = $3.39 + 0.9 = $<<3.39+0.9=4.29>>4.29. Answer: \boxed{4.29}.
To convert the mixed number $3.39 9/10 into a decimal, we need to add the whole number part to the fractional part.
The whole number part is 3.
To convert the fractional part (9/10) into a decimal, we divide the numerator (9) by the denominator (10):
9 ÷ 10 = 0.9
Now, we can add the whole number part (3) and the decimal part (0.9) to get the price of a gallon in decimal form:
3 + 0.9 = 3.9
Therefore, a gallon of gas costs $3.90 when written strictly as a decimal.
To determine the cost of a gallon of gas, we need to convert the mixed number $3.39 9/10 to a decimal.
First, we can ignore the fraction part (9/10) and focus on the whole number part ($3.39).
Next, we convert the fraction 9/10 to decimal form by dividing the numerator (9) by the denominator (10):
9 ÷ 10 = 0.9
Now, we can add the decimal value (0.9) to the whole number part:
$3.39 + 0.9 = $4.29
Therefore, a gallon of gas costs $4.29 when rounded to decimal form.