8/15 - (-2/3)
Its like adding them when its -(-#), so we turn it into 8/15 + 2/3
Now we make each fraction have the same denominator; 8/15 + 10/15
Now we solve by adding; 18/15 = 1 1/5
The number of CDs the students at your high school bought in 2008 is 100
<h3>How to predict the number of CDs?</h3>
The graph of the question is added as an attachment
From the graph, we have the following highlights:
- The graph reaches a maximum of 200 in 2004
- Then it decreases by 25 each year
2008 is 4 years from 2004.
So, the prediction is;
Year 2008 = 200 - 4 * 25
Evaluate
Year 2008 = 100
Hence, the number of CDs the students at your high school bought in 2008 is 100
Read more about graphs at:
brainly.com/question/16473290
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Answer:
Daniel is 21 years old
Step-by-step explanation:
Let
R ---> Rick's age
M ---> Mike's age
L ---> Larry's age
E ---> Ed's age
D ---> Daniel's age
we know that
The sum of their ages is 271
so
----> equation 1
Rick is 5 times the age of Mike
so
----> equation 2
Mike is half the age of Larry
so
----> equation 3
----> equation 4
----> equation 5
substitute equation 2, equation 3, equation 4 and equation 5 in equation 1
simplify
-----> equation 6
substitute equation 2 and equation 3 in equation 6
solve for M
Find the value of R (equation 2)
Find the value of D (equation 5)
therefore
Daniel is 21 years old