Answer:
Kindly check explanation
Step-by-step explanation:
Given that :
Total flowers sold = 200
Flowers are :
Carnations, Roses, and Gerber daisies
Carnations = c
Roses = r
Daisies = d
20 fewer roses than daisies ; r = d - 20
Total sales = $453
c = $1.50 each ; r = 3.75 each ; d = 2.25 each
c + d + d - 20 = 200
c + 2d = 220 - - (1)
1.50c + (d - 20)(3.75) + 2.25d = 453
1.50c + 3.75d - 75 + 2.25d = 453
1.50c + 6d = 528 - - - (2)
From (1)
c = 220 - 2d
1.5(220 - 2d) + 6d = 528
330 - 3d + 6d = 528
330 + 3d = 528
3d = 528 - 330
d = 198/3
d = 66
66 × 2.25 = $148.5
c = 220 - 2(66)
c = 88
88 * 1.50 = $132
r = d - 20
r = 66 - 20
r = 46
46 × $3.75 = $172.5
Answer:
Step-by-step explanation:
1. x+6=14
14-6=8
x=8
2. 15/x=3
15/3=x
x=5
3. 7*x=56
56/7=8
x=8
4. x^2-4=12
x=4, x=-4
5. 1/4x=10
x/4 = 10
x = 40
6. 3x-9=18
x=9
7. 1/2x-10=14
x/2-10=14
x=48
8.x/8=9
8*9=72
x=72
9.2x+3=24
2x=21
x=21/2
10.20*x=140
140/20=7
x=7
Answer:
9.) ![t=.05m+20](https://tex.z-dn.net/?f=t%3D.05m%2B20)
10.) ![t=.10m+5](https://tex.z-dn.net/?f=t%3D.10m%2B5)
11.)
minutes of calling would make the two plans equal.
12.) Company B.
Step-by-step explanation:
Let <em>t</em> equal the total cost, and <em>m,</em> minutes.
Set up your models for questions 9 & 10 like this:
<em>total cost = (cost per minute)# of minutes + monthly fee</em>
Substitute your values for #9:
![t=.05m+20](https://tex.z-dn.net/?f=t%3D.05m%2B20)
Substitute your values for #10:
![t=.10m+5](https://tex.z-dn.net/?f=t%3D.10m%2B5)
__
To find how many minutes of calling would result in an equal total cost, we have to set the two models we just got equal to each other.
![.10m+5=.05m+20](https://tex.z-dn.net/?f=.10m%2B5%3D.05m%2B20)
Let's subtract
from both sides of the equation:
![.10m=.05m-15](https://tex.z-dn.net/?f=.10m%3D.05m-15)
Subtract
from both sides of the equation:
![.05m=15](https://tex.z-dn.net/?f=.05m%3D15)
Divide by the coefficient of
, in this case: ![.05](https://tex.z-dn.net/?f=.05)
![m=300](https://tex.z-dn.net/?f=m%3D300)
__
Let's substitute
minutes into both of our original models from questions 9 & 10 to see which one the person should choose (the cheaper one).
Company A:
![t=.05(200)+20](https://tex.z-dn.net/?f=t%3D.05%28200%29%2B20)
Multiply.
![t=10+20](https://tex.z-dn.net/?f=t%3D10%2B20)
Add.
![t=30](https://tex.z-dn.net/?f=t%3D30)
Company B:
![t=.10(200)+5](https://tex.z-dn.net/?f=t%3D.10%28200%29%2B5)
Multiply.
![t=20+5](https://tex.z-dn.net/?f=t%3D20%2B5)
Add.
![t=25](https://tex.z-dn.net/?f=t%3D25)
<em />
Answer:
six hundred fifty-five and ninety-two hundredths
Step-by-step explanation:
655.92
Hope this helps.
Your first step should be to plug in the q and f values they give you. q being 20 and f being 16. From there you want to isolate 1/p by subtracting the 1/20 from both sides. You should be left with 1/p = 1/16 - 1/20. This will come out to be 1/80 or 0.0125. Now that one side is 1/p and the other is 1/80 you can multiply both sides by p in order to get 1=1/80 times p which means that p = 80 . Hope this helps