1. Jina purchased a prepaid phone card for $15. Long distance calls cost 11 cents a minute using this card. Jina used her card only once to make a long distance call. If the remaining credit on her card is $11.04 , how many minutes did her call last?

I got 3.96 minutes is that corrct?

Justin's gas tank is 1/4 full. After he buys 9 gallons of gas, it is 5/8 full. How many gallons can Justin's tank hold?

How would i set that up?

1. Your answer can't be right. 4 minutes times 11 cents = 44 cents.

She spent $3.96 on this call. Divide.

To find the answer to the first question, we need to calculate the amount spent on the call using the given information.

1. Start by subtracting the remaining credit of $11.04 from the initial card value of $15:
$15 - $11.04 = $3.96

2. Next, divide the remaining credit by the cost per minute to find the total minutes:
$3.96 ÷ $0.11 = 36

Therefore, if the remaining credit is $11.04, Jina's call lasted for 36 minutes (not 3.96 minutes).

Now let's move on to the second question:

To determine how many gallons Justin's gas tank can hold, we need to use the given information about the tank's initial and final levels.

1. Subtracting the initial tank level from the final tank level gives us the amount of gas Justin added:
5/8 - 1/4 = 5/8 - 2/8 = 3/8

2. since 9 gallons of gas filled 3/8 of the tank, we can use a proportion to find the tank's capacity (x):

9 gallons / (3/8) = x gallons

To solve for x, multiply both sides by the reciprocal of 3/8 (or divide by 3/8):
9 gallons / (3/8) * (8/3) = x gallons
9 gallons * 8/3 = 24 gallons = x gallons

Therefore, Justin's gas tank can hold 24 gallons.