mrs Singh bought 9 folders 9 notebooks. The cost of each folder is $2.50 and the cost of each notebook is $4 write two equivalent expressions then find the answer

Answers

Answer 1
Answer:

He bought 3 folders and 2 notebooks

  • Let the cost of folder books be x
  • Let the cost of notebooks be y

We are told that mrs Singh bought 9 folders and 9 notebooks,

If the cost of each folder is $2.50 and the cost of each notebook is $4, then;

2.5x = 9 and 4y = 9

Get the value of x:

2.5x = 9

x = 9/2.5

x = 3.6

Get the value of y;

4y = 9

y = 9/4

y = 2.25

Hence he bought 3 folders and 2 notebooks

Learn more on eqautions here: brainly.com/question/2972832

Answer 2
Answer:

Answer:

$58.50

Step-by-step explanation:

First, you write the 2 expressions.

9(2.50+4) = 9(2.50)+4; $58.50

2.50 + 4 = $6.50

$6.50*9 = $58.50

Hope this helps.


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There are some hats in a box. 1/6 of them are red, 1/3 of blue, and 3/7 of the remainder are green. If there are 27 green hats, how many hats are there altogether

Answers

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Answers

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Mathew has 2148 poppies he has 200 people how many poppies dose everyone get.

Answers

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Answers

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If the radius of the cone is doubled will its surface area be doubled?

Answers

Answer:


Step-by-step explanation:

If the radius of a circle is doubled, the area of the circle will be quadrupled and the circumference will also be doubled. This makes sense because the area of a circle is directly proportional to the square of the radius of the circle (if the radius of a circle is increased x times, its area will be increased to x^2 times the original area), whereas the circumference is proportional to the size of the radius (if the radius of a circle is increased x times, its circumference will increase x times).


What is the equation of the line described below written in slope-intercept form? the line passing through point (2, 4), parallel to the line whose equation is y = x y = -x y = x + 2 y = -x + 2

Answers

For this case we have that by definition, the equation of a line in the slope-intersection form is given by:

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Where:

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b: It is the cut-off point with the y axis

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If we have the following line:

y = x

Whose slope is m_ {1} = 1

So, a line parallel to it has a slope m_ {2} = 1

Therefore, the equation is of the form:

y = x + b

If the line passes through point (2,4), we can substitute in the equation and find "b":

4 = 2 + b\n4-2 = b\nb = 2

Finally, the equation is:

y = x + 2

ANswer:

y = x + 2

Answer:

y=x+2

Step-by-step explanation: