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ser-zykov [4K]
3 years ago
11

Mrs.Roberts charges 25 for a basic cake that serves 12 people. If you want a large cake, it costs an additional $1.25 per servin

g. Write equation for the total cost or a cake, where y represents total cost and x represents the number of additional servings. How much would a cake that serves 20 people cost?
Mathematics
1 answer:
Kitty [74]3 years ago
4 0

The total cost of a cake that serves 20 people is $35.

<u>Step-by-step explanation</u>:

  • Total cost = y
  • Number of additional servings = x
  • The number of additional servings = 20 - 12 = 8. (x=8)

<u>The equation can be formed as</u>:

  • Total cost = basic cost + (No. of additional serving \times cost per additional serving)
  • y = 25 + x1.25
  • Substitute x=8 in the above equation
  • y = 25 + 8(1.25)
  • y =25+10
  • y = 35

Therefore, the total cost of a cake that serves 20 people is $35.

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Answer:

A= 1/2 Bh

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Step-by-step explanation:

You first need to find the area of the Prism than multiply with the height.

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3 years ago
I have no idea what the answers are
lara [203]

Hello from MrBillDoesMath!

Answer:

Top line: y = (2/3)x + 2

Bottom line:  y = (2/3)x  -1

Discussion:

The graph provided is hard to read but I did the best I could.

The top line appears to pass through the points (0,2) and (-3,0)

For this line

m =  change y /change x = (0-2)/(-3-0) = -2/-3 = +2/3. So

y = mx + b => y = (2/3) x+ b.  As the line passes through (0,2) set x = 0, y= 2 in y = (2/3)x + b =>  

2 = (2/3) 0 + b   => b = 2

Therefore    y = (2/3)x + 2

The bottom line appears to pass through the points (0,-1) and (3,1)

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m =  change y /change x = (1-(-1)) /(3-0) = +2/-3. So

y = mx + b => y = (2/3) x+ b.  As the line passes through (0,-1) set x = 0, y= -1  in y = (2/3)x + b =>  

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