Answer:
90 MPH
Step-by-step explanation:
2700 / 30 = 90
Answer:
y = -2x - 19
Step-by-step explanation:
Slope-intercept form: y = mx + b
2x + y = -19
Subtract 2x from both sides;
y = -2x - 19
Answer: m = 55h
m = number of miles
h = number of hours
I'm using the formula distance = rate*time
The value of x is
and 
Step-by-step explanation:
The equation is 
Subtracting by
on both sides,

Taking LCM,

Multiplying by 3x on both sides,

Dividing by (-) on both sides,

Using quadratic formula, we can solve for x.

Taking out common term 2, we get,

Thus, the value of x is
and 
Use the identity:
P(A or B)=P(A)+P(B)-P(A and B)
Substitute given values,
0.88=0.62+0.47-P(A and B)
=>
P(A and B)=0.62+0.47-0.88=0.21