Answer:
The answer would be 5.
Step-by-step explanation:
If you take away 18 from 90 would be 72.
72 - 18 =54
54 - 18 =36
36 - 18 =18
18 - 18 =0
If you count that would equal 5 .
Hope this helps .
173
____
4)692
4
___
29
28
____
12
12
____
0
Step-by-step explanation:
with $4,000 invested, Jake has
8% × $4,000 = $320 annually.
in order to have annual interest $628, he has to get more interest $(628-320) = $308.
the rate should be:
308/2800 × 100%
= 308 /2800 × 100%
= 11%
Answer:
The answer is six.
Step-by-step explanation:
For a number to be divisible by nine means that the sum of the digits must be equivalent to a multiple of nine.
Answer:
(71.28, 78.72)
Step-by-step explanation:
We have the following information from the statement:
mean (m) = 75
sample standard deviation (sd) = 5
Sample size (n) = 13
Significance level (alpha) = 1 - 0.98 = 0.02
Degrees of freedom for t-d (df) = n - 1 = 13 - 1 = 12
The critical value would be:
t (alpha / 2) / df = T (0.01) / 12 = 2,681 (this for the table)
Margin of error equals:
E = t (alpha / 2) / df * sd / n ^ (1/2), replacing:
E = 2,681 * 5/13 ^ (1/2)
E = 3.72
Therefore, the interval of 98% confidence interval would be:
75 + 3.72 = 78.72
75 - 3.72 = 71.28
(71.28, 78.72)
