In total, there were 147 books returned that week that had more than 200 pages. If 116 of those were returned on time, then 31 were returned late. This is about 79 percent of the 147 total. So, there is about a 79% chance that a randomly selected book with 200 pages or more was returned on time, or about 79/100.
A Mathematician is an expert in or student of mathematics
A crytologist is someone who skilled at cracking codes puzzels and ect.
15. (2•l)+(2•w)=38.
(2•l)+8=38.
Subtract 8 from both sides which leaves (2•l)=30.
Divide by 2 from both sides and that leaves 15.
Answer:
1:2.5
Step-by-step explanation:
unit rate means first number is 1
52 cups to five cups is a ratio of 2:5 or 2/5
to find unit rate set up proportion
2/5 = 1/x
cross multiply to get 5= 2x
solve for x= 2.5
unit rate is 1/2.5
