Which value of xis a solution to this equation?
16 + 2x = 36

Start by isolating the term containing x which is 2x.

To do this, subtract 16 from both sides.

On the left, the 16's cancel and we're left

with 2x andon the right, 36 - 16 is 20.

So we have 2x = 20.

Now since 2 is multiplied by x, divide both

sides of the equation by 2 to get x by itself.

On the left, the 2's cancel and we're left

with x and on the right, 20 divided by 2 is 10.

So we have x = 10 which is the solution to this equation.

a) one student is chosen from classroom a, then a student is chosen from classroom b.  

step-by-step explanation:

independent events are ones in which the probability of one event does not affect the probability of the second event.

one student is chosen from classroom a; this does not affect the chances of choosing a student from classroom b.   this makes these independent events.

when one card is chosen from a standard deck and then set aside before a second card is chosen, the probability of the second card being chosen changes.   this makes them dependent events.

when one student is chosen from classroom a and then a second student is chosen from classroom a, the probability of choosing the second student changes.   this makes them dependent events.

when a letter is chosen from the alphabet and then a second letter is chosen, the probability of choosing the second letter changes.   this makes them dependent events.

so, converting firstly the mixed fractions to improper fractions and then "adding".