The spinner is shown has eight congruent sides the spinner is spun 200 times. What is a reasonable prediction for the number of
1 answer:
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Answer:
X=10, Y=20,Z=80
Step-by-step explanation:
We are given that the numbers X,Y and Z are in the ratio 1:2:8
Let the numbers be:
X=x
Y=2x
Z=8x
Now we are given that 40 is subtracted from Z such that the numbers X,Y,Z-40 form a geometric sequence.
that means x,2x,8x-40 forms a geometric sequence.
Also if a,b,c are in geometric progression then they have same common ratio.
i.e.
Hence, the number X =10
Y=2×10=20
Z=8×10=80