Given the equaiton system, we can use the method of solving two equations to find the answer:
x+y=80
5x+8y=430
Break it down into two equaitons:
x+y = 80
y = 80 - x ...(1)
5x + 8y = 430...(2)
We can then use the method of substitution to find the answers:
Put (1) into (2),
5x + 8(80-x) = 430
5x + 640 - 8x = 430
-3x = 430 - 640
-3x = -210
x = 210/3
x = 70...(3)
Now thay we find x, we can put it into the first eqaution to find y:
x+y = 80
70+y = 80
y = 10
Therefore, x= 70 and y = 10.
Hope it helps!
Answer:
All of them are rational except for 0.0100100010001, root50, and pi
rational = no forever decimal these are the ones that arent rational
Hope this helps plz hit the crown :D
1) x+y=302x+9y=172x=-y+30-2y+60+9y=1727y=112y=16x=14
14 2-point questions and 16 9-point questions
2) c+a=163
6c+13a=1566
c=-a+163
-6a+976+13a=1566
7a=588
a=84
c=79
84 adult tickets and 79 children tickets
3) a+c=15; ax+cy=132
8+7=15; 8x+7y=132
a+c=9; ax+cy=72
4+5=9; 4x+5y=72
8x+7y=132
4x+5y=72
(8x+10y)=(144)
8x=-7y+132
8x=-10y+144
-7y+132=-10y+144
3y=12
y=4
4x+20=72
4x=52
x=13
The price for an adult ticket is $13 and the price for a child ticket is $4
Answer:
rational
Step-by-step explanation:
Answer:
y=-2/5x+5
Step-by-step explanation: