Answer:
<h2>120 cars</h2>
Step-by-step explanation:
This problem is on ratio, and we can use part to the whole to arrive at our answer
given that total vehicles is 210 vehicles
the sum of the ratio of cars to trucks is = 4+3= 7
therefore applying part to the whole formula we have
for cars
4/7=x/210
cross multiply we have
7x= 210*4
x= (210*4)/7
x= 30*4
x= 120
So in all there are 120 cars in the lot
7/25
First thing you want to do is put it over 100
28/100
Now divide by 4
28÷4=7
100÷4=25
Answer:
0.9864
Step-by-step explanation:
The average sample mean is 295, and the standard deviation is:
σ = 15 / √17
σ = 3.64
The z-scores are:
z = (x − μ) / σ
z₁ = (-9) / 3.64
z₁ = -2.47
z₂ = (9) / 3.64
z₂ = 2.47
So the probability is:
P(-2.47 < Z < 2.47) = P(Z < 2.47) − P(Z < -2.47)
P(-2.47 < Z < 2.47) = 0.9932 − 0.0068
P(-2.47 < Z < 2.47) = 0.9864
I believe the answer is 10^4
Grouping similar factors together makes this easier:
(8)(2)(10^7)(10^6) = 16(10^13) = 1.6(10^14)
