Answer:
3×(27-7) says to subtract 7 from 27 first, then multiply with 3; but 3×27-7 says to multiply 3 by 27 first ,then subtract 7.
The second bullet is the correct option
I'm guessing this is a question about interest rates? If you have $20 that increases by 4% in one year, you need to multiply 20 by 1.04. This gets you $20.8.
If you are talking about compound interest, we will take this number and multiply it again by 1.04 for the second year. 20.8 x 1.04 = $21.632.
If it is instead simple interest, we will simply add another .8 dollars for each year, instead of getting 4% interest compounded every year onto the new value. This gets you $21.6.
Answer:
A
Step-by-step explanation:
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Answer:
The series 64, 16, 4, 1 is convergent.
Step-by-step explanation:
Let be 
the set of values of the series. A series is convergent if and only if:
(1)
If we know that 
, 
, 
and 
, then the convergence ratio of each pair of consecutive values are, respectively:
, 
, 
Hence, the series 64, 16, 4, 1 is convergent.
Answer: 3b+3s
Step-by-step explanation:
The first part of this question is:
<em>Rachel needs to write 3 book reports with b pages and 3 science reports with s pages during the school year. How do you write an algebraic expression for the total number of pages Rachel will need to write?</em>
This means Rachel has to write 3b+3s pages
Now, if Yassi has to write 3(b + s) pages, we can use the distributive property and the result is:
3(b + s)=3b+3s
Which is the same number of pages Rachel has to write.
