3x-y=-10
y=3x+10
so the equation “x+2y=6” is “x+2(3x+10)=6” so we have:
x+6x+20=6
7x=6-20
7x=-14
x=-14/7=-2
to get y we can replace x with its value “-2” in the equation”y=3x+10” so we have:
y=3(-2)+10=-6+10=4
Answer:
30/441
Step-by-step explanation:
6/21 chance to draw nickel on the first one. since you dont replace coins, there is a 5/20 chance of drawing a dime on the next one.
6/21x5/20= 30/441
Answer:1/36
Step-by-step explanation:
11 12 13 14 15 16
21 22 23 24 25 26
31 32 33 34 35 36
41 42 43 44 45 46
51 52 53 54 55 56
61 61 63 64 65 66 <=only 1 with 2 sixes
x=15 and i have to write some more for 20 letters
Answer:
77
Step-by-step explanation:
just do 500-423
