Answer:
8184 vocalists sang in total
Step-by-step explanation:
The number needed is ...
8 + 16 + 32 + 64 + 128 + 256 + 512 + 1024 + 2048 + 4096
You can add these up to get a total of 8184, or you can use the formula for the sum of a geometric series:
Sn = a1(r^n -1)/(r -1) . . . . where a1 is the first term and r is the common ratio
S10 = 8(2^10 -1)/(2 -1) = 8(1024 -1)/1 = 8184
Answer:
3/10
6/20
Step-by-step explanation:
We need to find the number of bucks
4 does + 3 fawns + x bucks = 10
4 + 3 +x = 10
7+ x = 10
Subtract 7 from each side
x = 3
There are 3 bucks
3/10 is the fraction of bucks
Multiply the top and bottom by 2
3/10 * 2/2 = 6/20 is an equivalent fraction
