Answer:
9 girls
Step-by-step explanation
3x+5x=24
8x=24
x=3
Now go back and replace x with 3
3(3)+5(3)=24
9+15= 24
9 girls is your answer!
I'll do problem 13 to get you started.
The expression is the same as
Then we can do a bit of algebra like so to change that n into n-1
This is so we can get the expression in a(r)^(n-1) form
- a = 8/7 is the first term of the geometric sequence
- r = 2/7 is the common ratio
Note that -1 < 2/7 < 1, which satisfies the condition that -1 < r < 1. This means the infinite sum converges to some single finite value (rather than diverge to positive or negative infinity).
We'll plug those a and r values into the infinite geometric sum formula below
S = a/(1-r)
S = (8/7)/(1 - 2/7)
S = (8/7)/(5/7)
S = (8/7)*(7/5)
S = 8/5
S = 1.6
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Answer in fraction form = 8/5
Answer in decimal form = 1.6
Not sure what you're asking for but the Integer of 160ft above sea level will just be +160
5/2 is steeper
Rise/run meaning it goes up one and over two
35 cookies 45-10=35 there u go