Answer:
A
Explanation:
Let's say x represents adult tickets, and y represents child tickets.
We know that 2 adult tickets, x, and 2 child tickets, y, added together total $26. This can be written as:
2x+2y=26
We also know that 2 adult tickets, x, and 3 child tickets, y, added together total $31. This can be written as:
2x+3y=31
So, our system is:
2x+2y=26
2x+3y=31
Therefore, choice A is correct.
Answer: 1.12g/ml
Explanation
Ist step
Volume of the object =final volume of water in the cylinder -Initial volume of water in cylinder
= 85ml -52ml = 33ml
2nd step
Density = Mass/ Volume
37 g/ 33ml =1.12g/ml
The answer SHOULD be D, if I'm wrong, I really am sorry.
I’m pretty sure formal is not