Answer:
1) Distance=Speed*time
90=(x+1)*(x)+(2x+5)(x-1)
90=x^2+x+2x^2-2x+5x-5
3x^2+4x-95=0
2) 3x^2+4x-95=0. Using quadratic formula, we get
x=(-4±sqrt(16-4*3*(-95)<u>)</u>)/6, x=5 or - 19/5 but since x also represents time, it can't be negative.
3) Total time take she took for the journey is x+x-1=2x-1=2*5-1=9 hours
Answer:
C
Step-by-step explanation:
1 since it's -1 inside it moves to the right
and it's positive 3 outside so it goes up 3
Answer: y = 2x + 5
Step-by-step explanation:
Tenths: 1.1
Hundredths: 1.07
Thousandths: 1.068
Answer:
True
Step-by-step explanation:
Example: 1.666666...
In that case, place the bar on top of the last 6