I believe pints would be a good unit to use, since most people drink around 100 ounces a day, and one pint is about 16 ounces.
58a + 49 is the correct answer
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
Answer:
The answer is (r + 3)(r - 3)
Step-by-step explanation:
There need to be two number that add together to get 0
and two number that multiply together to get -9
3 + -3 = 0
3 · -3 = -9
= (r + 3)(r - 3)
