1.) Diego paid $47 for 3 tickets to a concert. Andre paid $141 for 9 tickets to a concert.
Did they pay at the same rate (what was the value they paid for 1 ticket)? How do you
know?
They pay at the same rate. The value they paid for one ticket is 15.67$ How do you know: Andre paid for 3 times more tickets than Diego. 47 x 3 is 141, so they are at the same rate. 47 / 3 is 15.667, which rounds up to 15.67$ in money terms.
