John pays $3 for the rain and $2 for the bus each day. Which ordered pair represents how much money John spends in 15 days on trains and buses?

(45, 30)
(30, 40)
(1, 45)
(1, 30)

1 answer

To find out how much money John spends in 15 days on rain (trains) and buses, we first need to calculate his daily spending.

John spends $3 for the rain and $2 for the bus each day, so his daily total spending is:

\[ 3 + 2 = 5 \text{ dollars per day} \]

Now, we can calculate his total spending over 15 days:

\[ 5 \text{ dollars/day} \times 15 \text{ days} = 75 \text{ dollars} \]

Next, we will determine the spending separately on trains and buses over these 15 days.

For the rain (trains): \[ 3 \text{ dollars/day} \times 15 \text{ days} = 45 \text{ dollars} \]

For the bus: \[ 2 \text{ dollars/day} \times 15 \text{ days} = 30 \text{ dollars} \]

Thus, after 15 days, John spends $45 on trains and $30 on buses. Therefore, the ordered pair representing how much money John spends in 15 days on trains and buses is:

\[ (45, 30) \]

The correct answer is (45, 30).