One week you spent $24 on 6 subway tickets and 4 express bus tickets. the next week you spent $27 on 3 subway tickets and 7 express tickets. how many will it cost you to buy 5 subway tickets and 2 express tickets this week?

$16

Step-by-step explanation:

Let x represents the cost of one subway ticket and y represents the cost of one express ticket.

According to the question, we have the following equations :-

Multiply equation (2) with 2 on both sides , we get

Subtract equation (1) from equation (3) , we get

Put the value of y in (2), we get

Thus, the cost of a subway ticket = $2

The cost of a express ticket = $3

Now, the cost of 5 subway tickets and 2 express tickets will be :-