First blank: always
I'm not so sure with the second blank, but I would think it is "always".
Answer:
140
Step-by-step explanation:
Suppose,
x drinks were sold for 2$
y drinks were sold for 5$
therefore, x+y = 250....( 1 )
and 2x+5y = 830......( 2 )
multiply equation ( 1 ) with 2,
2x+2y = 500......( 3 )
Subtract equation ( 3) from (2)
3y = 330
or, y = 110
so, x = 140
so, 140 drinks were sold for 2$
Answer: False
Step-by-step explanation: Changing the number does affect the relationship if you switch it you might get greater than 0 or less than 0 if yo u switch them.
Hopes this helps :)