Answer:
$45
y = 45x + 15
Step-by-step explanation:
Given :
Days Total Cost
(d) (C)
2. $105
4 $195
6 $285
10 $465
The daily rate is the slope :
Slope = Rise / Run
Slope = (y2 - y1) / (x2 - x1)
Slope = (465 - 105) / (10 - 2)
Slope = 360 / 8
Slope = 45
Daily rate = $45
Using the slope intercept relation :
y = mx + c
m = slope, c = intercept
105 = 45x + c
105 = 45(2) + c
105 = 90 + c
105 - 90 = c
15 = c
Pricing plan :
y = 45x + 15
The key words here are <em>less than</em> and <em>3 times</em>. Knee pads are represented by the variable<em> k</em>, and 3 times that price would be 3<em>k</em>. Now, skateboards are $5 less than that price, so the expression that gives the price of a skateboard is 3<em>k</em> - $5.
First we find the volume of the triangular prism.
We find the area of the triangle, then we multiply that by the height.
So 7*6/2= 42/2=21
21*10= 210
Then if all the dimensions add another foot on to them then you get: 7, 8, and 11.
Then you do the same thing to find the area of this rectangular prism.
7*8/2=56/2=28
28*11= 308
Now, we calculate the growth from 210 to 308 in this proportion: 308/210=x/100
Solving it we get (cross multiplying):
210x=30800
x=146 2/3 or 146.66 percent increase.
I hope this helps!
The very pharmacy technician must be held guilty
The answer is b because of the letter in the answer.
