Answer:
my answer was -27
Step-by-step explanation:
Answer:
−10x + 4.35xy + 55y + 9.58
Step-by-step explanation:
Step 1: Collect like terms.
(6x − 16x) + 4.35xy + (16y + 39y) + 9.58
Step 2: Simplify and you're done!
−10x + 4.35xy + 55y + 9.58
Answer:
Step-by-step explanation:
Let's solve this problem step-by-step. The library had 1,500 books in 2011. The ratio of books in 2011 and in 2012 is 1:2. Therefore, let the number of books in 2012 be .
We have the following proportion:
Therefore, there were 3,000 books in 2012. The ratio of books in 2012 and in 2013 is 2:5. Let the number of books in 2013 be .
We have:
Therefore, there were 7,500 books in 2013.