Answer:
7/4
Step-by-step explanation:
x and y are exchanged for each other, and the sign is flipped.
Answer:
12/18 every hour
Step-by-step explanation:
2/3 =10 minutes
4/6 = 20 minutes
6/9 = 30 minutes
8/12 = 40 minutes
10/15 =50 minutes
12/18 = 60 minutes
Answer: a
Step-by-step explanation:
C(x)=rx+s we are told that x=3, c(x)=21, and s=3
21=3r+3 divide both sides by 3
7=r+1 subtract 1 from both sides
6=r so now c(x) becomes:
c(x)=6x+3
