Robbie wants to complete the equation below.
2 answers:
You might be interested in
Answer:
1.2%
Step-by-step explanation:
We are given that the students receive different versions of the math namely A, B, C and D.
So, the probability that a student receives version A = .
Thus, the probability that the student does not receive version A = =
.
So, the possibilities that at-least 3 out of 5 students receive version A are,
1) 3 receives version A and 2 does not receive version A
2) 4 receives version A and 1 does not receive version A
3) All 5 students receive version A
Then the probability that at-least 3 out of 5 students receive version A is given by,
+
+
=
=
=
=
= 0.01171875 × 1.0625
= 0.01245
Thus, the probability that at least 3 out of 5 students receive version A is 0.0124
So, in percent the probability is 0.0124 × 100 = 1.24%
To the nearest tenth, the required probability is 1.2%.
ANSWER
It would take 45 good years
<u>EXPLANATION</u>
We calculate simple interest using the formula,
From the question,
dollars
%
and
dollars
We substitute into the above formula
Therefore it would take 45 years.
Answer:
2.4%
Step-by-step explanation:
Simple interest (I) is calculated as
I =
where P is the principal, R the rate of interest and T time in years
Here I = 96, P = 800 and T = 5, thus
96 = =
= 40R ( divide both sides by 40 )
R = = 2.4%