Answer:
You can't add all of these together due to the fact that they are different variables. It is like trying to add pears and apples and saying them in one word. You can't do it.
Step-by-step explanation:
Answer:
Number of senior citizen tickets sold= 110
Number of adults tickets sold= 290
Step-by-step explanation:
<u>First, we need to establish a system of equations:</u>
x= number of adults tickets
y= number of senior citizen tickets
x + y= 400
6x + 3y= 2,070
<u>Now, we isolate x in one equation and substitute the value in the other:</u>
x= 400 - y
6*(400 - y) + 3y = 2,070
2,400 - 6y + 3y = 2,070
330 = 3y
110 = y
Number of senior citizen tickets sold= 110
Number of adults tickets sold= 290
<u>Prove:</u>
290 + 110= 400
6*290 + 3*110= 2,070
For number 5 : 2/7 is first, then comes 1/5, then comes 1/6.
Answer:
16.5
Step-by-step explanation:
So we have the function:
To find f(2.5), substitute 2.5 for x. Thus:
Multiply:
Add:
And we're done!
