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IceJOKER [234]
3 years ago
15

camilla paid $1.15 per pound for x pounds of tomatoes. She paid for her tomatoes with $10 and received $4.48 in change. How many

pounds of tomatoes did Camilla buy? Explain.
Mathematics
1 answer:
Alika [10]3 years ago
5 0

Answer:

x=4.8\ pounds

Step-by-step explanation:

Let

x-----> the number of pounds of tomatoes Camilla bought

we know that

The equation that represent this situation is equal to

1.15x=10-4.48

Solve for x

1.15x=5.52

x=5.52/1.15

x=4.8\ pounds

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tia_tia [17]

Answer: 3

Step-by-step explanation:

11- 2x2x2 since its 2 to the power of 3 which will give you 8 and than you basically just subtract 11- 8=3

6 0
2 years ago
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Please answer!! i’ll give brainliest
ludmilkaskok [199]

Answer:

c=-6

Step-by-step explanation:

I used a calculator and paper and a pencil d---------b yeah :D yr welcome

Ok, so you would want to simplify both sides of the equation

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4+4c=-20

Then, subtract 4 from both sides

4c+4-4=-20-4

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6 0
3 years ago
Solve for b open image
choli [55]

Answer:

130

Step-by-step explanation:

2x+100=5x+55

subtract 55 from both sides

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divide by 3

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plug it in

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3 years ago
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Help. I’m supposed to move the coordinates by the way.
DENIUS [597]

The coordinates of point D is given as

(x,y)=(-4,1)

Since the question asks to get two points sharing the same x-coordinate as D, we will move the points along the y-axis.

Therefore, we will add and subtract 7 units from the y-axis.

Let the first point be A. The coordinates for A will be

\begin{gathered} (x,y)=(-4,1+7) \\ (x,y)=(-4,8) \end{gathered}

Let the second point be B. The coordinates will be

\begin{gathered} (x,y)=(-4,1-7) \\ (x,y)=(-4,-6) \end{gathered}

We can plot the graph as shown below:

8 0
1 year ago
A rectangular poster is to contain 512 square inches of print. The margins at the top and bottom of the poster are to be 2 inche
goldfiish [28.3K]

Answer:

Poster dimensions:

w = 18 in

h  = 36 in

A(min) = 648 in²

Step-by-step explanation:

Printed area for the rectangular poster is:

512 in²

If we call "x" and  "y" dimensions of printed area we have:

512 = x*y       ⇒   y  =512/x

According to problem statment dimensions of the poster will be:

w  = x + 2       and   h  = y + 4

Then area of the poster is:

A(p) = w*h       ⇒   A(p) = (  x + 2 ) * ( y + 4 )

A(p) =  x*y + 4*x + 2*y + 8

And as y = 512/x we can express A(p) as a function of x

A(x) = x* (512/x) + 4*x + 2*(512/x) + 8

A(x) = 512 +4*x + 1024/x + 8    ⇒   A(x) = 520 +4*x + 1024/x   (1)

Taking derivatives on both sides of the equation (1) we get:

A´(x) = 4 - 1024/x²

A´(x) = 0       ⇒    4 - 1024/x² = 0

4*x² = 1024

x² = 1024/4

x² = 256

x = 16 in      and  y = 512/16       y  =  32 in

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And A´´(x)  = - [ - 1024(2x)/ x⁴] will be A´´(x)  > 0

Then the function has a minimum for x = 16

And dimensions of the poster are:

w = x + 2      w = 18 in

h =  y + 4      y  = 36 in

A (min) = 36*18

A (min) = 648 in²

6 0
3 years ago
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