The upper 0.05 critical value of the standard normal distribution is:
1 answer:
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Problem
Solution
for this case we know that when x =2/3 , y= 6
Then we want to find the value of y= ? when x= 10 1/3 = 31/3 and we can do this:
6/(2/3) = y/(31/3)
And solving for y we got:
y = (3/2) * 6 * (31/3) = 31*3 = 93
C. y= 93
Answer:
We only need to calculate the 15% of 44.99 and 49.99 and sum them, for that, we have to multiply each number by 0.15:
44.99 * 0.15 + 49.99 * 0.15 = 14.27
He saved 14.25 (you should put the unit it's).
We could also have done a rule of three (which is what we have really did before)
44.99 - 100%
x - 15%
x = =. 6.75
49.99 - 100%
x - 15%
x = = 7.5
6.75 + 7.5 = 14.25