Just use an online calculator! i promise you they work better than this.
Answer:
k+7
k-7
or k+7/k-7
Step-by-step explanation:
Answer:
The average increase in the number of smart
phones per year is 45
Step-by-step explanation:
Given that :
Number of students who had phones in 2005 = 120
Number of students who had phones in 2010 = 345
(345 - 120) / 5
225 / 5
= 45
Hence, average increase in number of smartphones per year = 45
Answer:
3 8/15
Step-by-step explanation:
2 1/5 + 1 1/3 = 3 8/15
Answer:
no
Step-by-step explanation:
i think its not proportional because 12 and 5 dont have nothing in common they are not divisble by each other
