Answer:
option d.
Step-by-step explanation:
<em>Multiply the top equation by 3 and the bottom equation by 4.</em>
Step-by-step explanation:
-8 - -4= -8+4=-4
16- -4=20
8- -4=12
-9--4=-5
Answer:
= 18
Step-by-step explanation:
Step-by-step explanation:
In Kate's equation, 20 is the total number of tickets, 4 is number of tickets per ride, r is number of rides already ridden, and 4r is the number of tickets used
in Brian's equation, 5 is total number of rides Katie can ride and 5 - r is the number of rides left to ride