Find a variable with equal or opposite coefficients, if equal then subtract the equations but if opposite then add, solve one variable equation left, and then substitute known variable into other equation and solve
Answer:
<em>Expected number of students would have a driver's license = 6</em>
Step-by-step explanation:
<u><em>Explanation</em></u>:-
Given data In a class of 25 students, 15 of them have a driver's license
The sample proportion

Let 'X' be the binomial distribution
Given sample size 'n' = 10
<em>mean of the binomial distribution or expected number of students would have a driver's license</em>
μ = n p
= 10 × 0.6
= 6
<u><em>Conclusion</em></u>:-
<em>Expected number of students would have a driver's license = 6</em>
First equation is: x - y = 12
x = 12 + y
Now, substitute this in 2nd equation,
2x - 3y = 27
2(12+y) - 3y = 27
24 + 2y - 3y = 27
-y = 27 - 24
y = -3
In short, Your Answer would be -3
Hope this helps!
Answer:
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Step-by-step explanation:
Answer and Step-by-step explanation:
To solve for r, we need to get everything away from r. We can start off by moving five thirds, and pi.

Multiply each side by
, then divide by
(pi)

Now, take the cubed root of both sides.
^^ That is the answer.
<em><u>#teamtrees #PAW (Plant And Water)</u></em>