Answer:
the answer is 20/72 = x/480 . this is because u have to add the numbers for the first sample to find the sample size and then make a ratio to determine if the sample size increases to 480 .
You just add them all together
9+11+5+7= 32
The least common denominator is 15. The equivalent fractions would be 10/15 and 12/15.
Answer:
v in (-oo:+oo)
1.13/64 = (11/8)*v // - (11/8)*v
1.13/64-((11/8)*v) = 0
(-11/8)*v+1.13/64 = 0
0.01765625-11/8*v = 0 // - 0.01765625
-11/8*v = -0.01765625 // : -11/8
v = -0.01765625/(-11/8)
v = 0.01284091
v = 0.01284091
Step-by-step explanation: