If R represents Reggie's time, the total time for the team is
.. R +(R +2.45) +(R -3.81) = 3R -1.36
.. = 3*57.12 -1.36
.. = 170.00 . . . seconds
Answer:
8
Step-by-step explanation:
2,365,*10^6=5,000,000*473
(P.S. 10^6 is 10 to the sixth power)
s = 6 + e
s + e = 28
We can use this system of equations to find the exact values of s and e.
We have a current value of s, so we can find the exact value of e now.
e + e + 6 = 28
<em><u>Combine like terms.</u></em>
2e + 6 = 28
<em><u>Subtract both sides by 6.</u></em>
2e = 22
<em><u>Divide both sides by 2.</u></em>
e = 11
Now we have an exact value of e, and can solve for the value of s.
s = 6 + 11
s = 17
Sophia is 17 years old, and Eric is 11 years old.
Answer:
The 99% confidence interval is
Step-by-step explanation:
From the question we are told that
The sample size is
The the number that are parents x = 175
The proportion of parents is mathematically represented as
substituting values
The level of confidence is given as 99% which implies that the level of significance is
1%
The critical value for this level of significance is obtained from the table of critical value as
Generally the margin of error is mathematically evaluated as
substituting values
Generally the 99% confidence interval is mathematically represented as
substituting values