Answer:
About 135.
Step-by-step explanation:
As the sample is random the number of monkeys likely to be in the zoo
= (22/65) * 400
= 135.38
You should be able to multiply 91 by 8 to get the sum of the first 8 tests, then add the score on the 9th test. Then to get the average of the sum of the 9 tests you need to divide it by 9.
((91*8)+78)/9=89.555555555555.... So, 90%
Answer:
(1) 4 (2) -2
Step-by-step explanation:
Answer:
I think the answer is (x-4)2 + y2 = 12 :) sorry if i am wrong***
Step-by-step explanation:
the answer is 763 because 763 - 763 = 0
