x is the number of adults and y is the number of children.
x + y = 12
<span>14x + 10y = 140
lets multiply the first equation by -10 and then add it to the second equation:
-10x - 10y = -120
</span>14x + 10y = <span>140
</span>-----------------------
4x + 0 = 20
x = 20/4
x = 5
then substitute in the original equation:
x + y = <span>12
</span>5 + y = <span>12
</span>y = 12 - 5
y = 7
therefore there were 5 adults and 7 children
Answer: D. Odd function
Step-by-step explanation:
x, -f(x) = f(-x)
Answer:
He should enter the lottery
Step-by-step explanation:
Answer:1014
Step-by-step explanation:
1014 I think this because 2029 is 1014.5 and they can’t have half a marble so they rack get about 1014
