Using a linear function, we have that:
a) The fixed cost is of $10.
b) The equation is: C = 10 + 12d.
c) The cost of an 18 km trip is $226.
d) The distance traveled is of 20 km.
<h3>What is a linear function?</h3>
A linear function is modeled by:
y = mx + b
In which:
- m is the slope, which is the rate of change, that is, by how much y changes when x changes by 1.
- b is the y-intercept, which is the value of y when x = 0, and can also be interpreted as the initial value of the function.
For this problem, the slope is of m = 12. When d = 5, C(d) = 70, hence we find the fixed cost as follows:
C(d) = 12d + b
70 = 60 + b
b = 10.
Hence the equation is:
C(d) = 12d + 10.
For a trip of 18 km, d = 18, hence the cost is:
C(12) = 12 x 18 + 10 = $226.
When the cost is of $250, the distance is found as follows:
250 = 12d + 10
12d = 240
d = 240/12
d = 20 km.
More can be learned about linear functions at brainly.com/question/24808124
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A <em>term</em> in a math expression is <u>single </u>number or variable and are <u><em>separated </em></u>by a + or - or × or ÷
This expression has 4 terms
2r
1c
.5d
and 8
Answer: 0.0023
Step-by-step explanation:
Let X be the binomial variable that represents the number of receipts will show that the above three food items were ordered.
probability of success p = 32% = 0.32
Sample size : n= 10
Binomial probability function :
Now, the probability that eight receipts will show that the above three food items were ordered :
![P(X=8)=\ ^{10}C_8(0.32)^8(1-0.32)^2\\\\=\dfrac{10!}{8!2!}(0.32)^8(0.68)^2\\\\=5\times9(0.0000508414176684)\\\\=0.00228786379508\approx0.0023](https://tex.z-dn.net/?f=P%28X%3D8%29%3D%5C%20%5E%7B10%7DC_8%280.32%29%5E8%281-0.32%29%5E2%5C%5C%5C%5C%3D%5Cdfrac%7B10%21%7D%7B8%212%21%7D%280.32%29%5E8%280.68%29%5E2%5C%5C%5C%5C%3D5%5Ctimes9%280.0000508414176684%29%5C%5C%5C%5C%3D0.00228786379508%5Capprox0.0023)
hence, the required probability = 0.0023
Answer:
The answer is
Step-by-step explanation:
I hope this helps you
130+x-5+x-35+x+30+75=360
3x=360-195
3x=165
x=55
m (B)=55-5=50