Answer:
D
Step-by-step explanation:
27 = P×(1 + 3r) = P + P×3×r
27 - P = P×3×r
r = (27 - P) / (3P)
therefore D is correct
Answer:
x = 1
Step-by-step explanation:
<span>If you plug this problem into a calculator, you'll get 89.5556.
</span>
Doing it using long division, you can work it out this way: 9/806- 72=86-81=5
So your answer will be 89 remainder 5 Hope this helps
Using the mean concept, it is found that the value of the number that was removed was of 4.
<h3>What is the mean?</h3>
The mean of a data-set is given by the <u>sum of all observations in the data-set divided by the number of observations</u>.
The mean of five numbers is 8, hence, the sum of the numbers is given by:
S = 5 x 8 = 40.
If one of the five numbers is removed, the mean becomes 9, hence, the sum of the four numbers is given by:
S = 4 x 9 = 36.
The difference is:
40 - 36 = 4.
Hence, the value of the number that was removed was of 4.
More can be learned about the mean concept at brainly.com/question/25122507
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Answer:
-4x-7
Step-by-step explanation:
Hope this helps!