Let n be the number of nickels and q be the number of quarters, then
n + q = 36 . . . (1)
0.05n + 0.25q = 6 . . . (2)
From (1): q = 36 - n . . . (3)
Putting (3) into (2) gives:
0.05n + 0.25(36 - n) = 6
Answer: D) some rice fields are more than 2,000 years old
Explanation: Reading plus
Objective well-being
Many countries and private institutions are interested in knowing the well-being of their member constituents. Higher levels of objective well-being are usually characterized by higher educational attainment, safe neighborhoods, as well as economic sufficiency and stability, for instance.
Answer:
I would think so to some extent
Explanation:
it might be a good idea for Google to collect medical data just to see some of the statistics but I do not believe that Google should be able to collect all of someone's medical data for they do should not need it.
What is the underlined part of the sentence?