First, we subtract 12x from both sides. We then get -4y=-12x+48. We then divide this by -4 on both sides to get the y by itself. We then get that the equation is y=3x-12.
A community group bought 30 tickets to an amusement park at a total cost of $810. They bought x student tickets for $25 each and y adult tickets for $30 each.
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let x=number of student tickets bought
30-x=number of adult tickets bought
..
25x+30(30-x)=810
25x+900-30x=810
5x=90
x=18
30-x=12
number of student tickets bought=18
number of adult tickets bought=12
Hope this helps!
Answer:
176
Step-by-step explanation:
just simplify the given mathematical statement
Answer:
LK=12
Step-by-step explanation:
From the given figure, HI=7 and LH=9, and we know that
(1)
Now, from ΔKHL, we have
and from ΔOKH,
(2)
Also, ΔIKL is similar to ΔOHL, therefore
Using equation (2), we get
Thus, the value of LK is 12.
