Ax^2 + bx + c is standard form
the LCD is 40,
so 25y + 120 -56x in standard form is -56x + 25y + 120
B = 25
Answer:
2x+5
Step-by-step explanation:
2 dollars multiplied by every ride he rides, which is represented as x, and 5 dollars to just get in, which is a flat price, it doesn't change.
2x+5
Answer: after 5 months
Step-by-step explanation:
Let x be the number of months it takes for Dalia to have more gems than Grace.
We can set up an inequality; the left side representing Dalia and the right side representing Grace
20x > 120-10x
We can add 10x to both sides:
30x > 120
We can divide both sides by 30:
x > 4
Therefore, after 5 months Dalia will have more gems than Grace.
A - drawing a girls name at first
P(A) = 2/(2+9) = 2/11
B - drawing a boys name in second drawing if first drawing was a girls name
P(B) = 9/10
C - drawing a girls name firstly and a boys name secondly
P(C) = P(A) * P(B) = 2/11 * 9/10 = 9/55
ans: 9/55