<span>use an expression
s = speed of the slower car
then
(s+20) = speed of the faster car
When they meet is after 400 miles
Write distance equation
slow car d + fast car d = 400 mi
4s + 4(s+20) = 400
8s + 80 = 400
8s = 400 - 80
8s = 320
s = 40 m/H</span>
X=-10
by simplifying both sides of the equation then isolating the variable
It's going to be 35 present
Given:
The group of 50 mice.
Event A = A male mouse is being chosen at random.
Event B = A mouse that is at least 6 months old being chosen.
The expression that describes a female mouse younger than 6 months old being chosen:
[A-} * [B] = inverse of A * B
Answer:
5
Step-by-step explanation:
-1 + 6 = 5
