If x=16-4y then in your other equation 3x+4y=8 you can put that where x is to get:
3(16-4y)+4y=8
Then multiply brackets to get:
48-12y+4y=8
Simplify:
48-8y=8
Rearrange:
40=8y
Divide through by 8:
y=5
Then put y=5 back into x=16-4y to get x:
x=16-4(5)
x=16-20
x=-4
Perpendicular lines have slopes that are negative-reciprocals.
Answer:
5(9+6)
5×9=45
5×6=30
I hope this is good enough:
Answer:
1/1296
Step-by-step explanation:
The probability of rolling any particular number is 1/6. So the probability of rolling a particular sequence of four numbers is:
(1/6) (1/6) (1/6) (1/6)
1/1296
≈ 0.0008
