We first find out time taken to travel for just 1 km
2hrs is equivalent to 120 minutes
120 km = 120 min
1 km = x (where x is the time taken to travel 1 km).
we simplify the equation by cross - multiplying the equation , so:
120 × x = 1 × 120 → 120x = 120 → x = 120/120 → x = 1
So the car covers 1km in 1 minute
For 300 km the car will take 300 × 1 minute = 300 minutes
we convert minutes to hours by dividing by 60 → 300 / 60 = 5
Therefore the car will take 5 hours to cover 300 km.
Answer:
a. 3/40
b. 37/40
c. 2/39
d. 37/39
e. 3/39
h. 36/39
k. 1/260
m. 37/520
n. 37/520
w. 111/130
Step-by-step explanation:
First person:
a. 3/40
b. 37/40
_____
Second person:
left-handed branch of tree diagram: since the first person was left-handed, it means there is one less left-handed person, and one less person for the total
c. 2/39
d. 37/39
not left-handed branch of tree diagram: since the first person wasn't left-handed, there are still 3 left-handed people, and there is one less person for the total.
e. 3/39
h. 36/39
_____
for the final probabilities, just multiply along the tree branches:
k = a × c = 1/260
m = a × d = 37/520
n = b × e = 37/520
w = b × h = 111/130
The rule for conditional probability states that
Since we're given both numerator and denominator, we only need to plug the values in:
Answer:
Option C. -8
Step-by-step explanation:
They ask us to find
(fof)(0)
To solve this problem we must introduce the function f(x) within the function f(x)
That is, we must do g(f(x)).
So, we have:
f(x) = 3x-2
Then:
f(f(x)) = 3(3x-2)-2
This is:
f(f(x)) = 9x-6 -2
f(f(x)) = 9x-8
Now we must do x = 0
f(f(0)) = 9(0) -8
(fof)(0) = -8
The answer is: option c (fof)(0) = -8.
Jaden gets 2/5 of 40 which is 16 and Isabella gets 3/5 of 40 which is 24.
Jaden gets $16
