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frosja888 [35]
3 years ago
11

Eileen’s cookies charges $0.40 per cookie with a delivery fee of $8. Insomnia cookies charges $1.50 per cookie with a $2.50 deli

very fee. How many cookies must you buy for the costs to be equal?
help plssss
Mathematics
1 answer:
Nuetrik [128]3 years ago
8 0

Answer: 5 cookies

Step-by-step explanation:  8 + .4c = 2.5 + 1.5c

8 + 0.4c = 2.5 + 1.5c

8 · 10 + 0.4c · 10 = 2.5 · 10 + 1.5c · 10

80 + 4c = 25 + 15c

4c = 15c - 55

4c - 15c = 15c - 55 - 15c

-11c = -55

c = 5

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Find an equation of the line parrallel to 6x+2y=49 containing the point 4,9
Alborosie
The equation of the line parallel to 6x+2y=49 is y=-3x+21. This also includes the point (4,9)
5 0
3 years ago
Find the perimeter of the quadrilateral
Stolb23 [73]

To find perimeter, all you need to do is add each side of the shape together. In this case you have a quadrilateral. Since you did not attach a picture of the quadrilateral, I cannot give you the exact answer that you are looking for. But, I do know that you will have 4 numbers. Simply add them up and the sum will be your perimeter.

6 0
3 years ago
The perimeter of a rectangle is 99 inches. It’s width is 11 inches. What is the length of the rectangle? Solve algebraically and
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2 (11)+2x=99
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3 0
3 years ago
Rewrite the function by completing the square (vertex form)<br><br> f(x)=x^2+16x-46
insens350 [35]

Answer:

\large\boxed{f(x)=(x+8)^2-110}

Step-by-step explanation:

\text{The vertex form of equation}\ y=ax^2+bx+c:\\\\y=a(x-h)^2+k\\\\\text{We have the equation:}\\f(x)=x^2+16x-46=x^2+2(x)(8)-46=x^2+2(x)(8)+8^2-8^2-46\\\\\text{use}\ (a+b)^2=a^2+2ab+b^2\to x^2+2(x)(8)+8^2=(x+8)^2\\\\f(x)=(x+8)^2-64-46=(x+8)^2-110

5 0
3 years ago
What is the volume of the cone below:<br> 5 cm<br> 12 cm<br> 13 cm
maksim [4K]

Answer:

<em>780cm cubed</em>

Step-by-step explanation:

  • <em>if we want to find the volume we would do length x width x height</em>
  • <em>which would be 5 x 12 x 13</em>
  • <em>so we would do 5 x 12 which is 60 </em>
  • <em>then we would do 60 x 13 which equals 780</em>
  • <em>So the answer is 780</em>
  • <em>Since this is volume it would be 780cm cubed</em>
5 0
3 years ago
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