Alison have 100 baseballs cards .
- A expression is a statement containing at least two numbers/variables and at least one mathematical operation.
- An expression is a combination of terms combined by mathematical operations such as subtraction, addition, multiplication, and division.
- The terms that appear in the formula are:
- Constant: A constant is a fixed number.
- Variables: Variables are symbols that do not have fixed values.
- Term: A term can be a single constant, a single variable, or a combination of variables and constants combined with multiplication or division.
- Coefficient: A coefficient is a number that is multiplied by a variable in an expression.
Let the number of footballs cards Alison have be "x".
It is given that Allison has 5 times as many baseball cards as football cards which can be represented by an expression given by
number of baseball cards = 5 × number of football cards
number of baseball cards ...(1)
She has total of 120 baseball and football cards which can be represented by an expression given by
Baseball cards + football cards = 120
From equation (1) , put x = 20 we get
Baseball cards =
cards
Learn more about expression here :
brainly.com/question/723406
#SPJ9
2x-3y= -4 because 2x=8 since x=4 so,
8 - 3y = 20
-8. -8
-3y = 12
————
-3
y = -4
Answer: Choice A
The two characteristics here are:
- The boundary line is a dashed line. This visually indicates to the reader "points on the boundary do NOT count as solutions". Think of the boundary as an electric fence you cannot touch, but can get closer and closer to. We aren't including boundary points directly because of the lack of "or equal to".
- The shading is above the boundary, due to the "greater than" sign. This only works if we have y isolated.
The graph of choice B is since we have a solid line and shading below the solid line. This time points on the boundary are part of the solution set.
<h3>
⚜Cost + Mark-up= Selling price</h3>
Why is this an important equation for businesses that sell products?
- <em>This</em><em> </em><em>equation</em><em> </em><em>is</em><em> </em><em>important</em><em> </em><em>for</em><em> </em><em>businesses</em><em> </em><em>that</em><em> </em><em>sell</em><em> </em><em>products</em><em> </em><em>because</em><em> </em><em>this</em><em> </em><em>formula</em><em> </em><em>can</em><em> </em><em>help</em><em> </em><em>them</em><em> </em><em>find</em><em> </em><em>the</em><em> </em><em>selling</em><em> </em><em>price</em><em> </em><em>of</em><em> </em><em>items</em><em>.</em>
- <em>And</em><em> </em><em>we</em><em> </em><em>know</em><em> </em><em>that</em><em> </em><em>selling</em><em> </em><em>price</em><em> </em><em>can</em><em> </em><em>be</em><em> </em><em>used</em><em> </em><em>to</em><em> </em><em>determine</em><em> </em><em>profit</em><em> </em><em>or</em><em> </em><em>loss</em><em>.</em><em> </em><em>Determination</em><em> </em><em>of</em><em> </em><em>profit</em><em> </em><em>and</em><em> </em><em>loss</em><em> </em><em>is</em><em> </em><em>important</em><em> </em><em>when</em><em> </em><em>running</em><em> </em><em>a</em><em> </em><em>business</em><em>.</em>
Next, rearrange the equation to solve for ‘Markup.’ In other words, ‘Markup = …’. What is that equation saying about Markup? How is ‘Markup’ related to the other two quantities?
- Mark-up = Selling price - Cost
- <em>Since</em><em>,</em><em> </em><em>The</em><em> </em><em>sign</em><em> </em><em>of</em><em> </em><em>constant</em><em> </em><em>is</em><em> </em><em>changed</em><em> </em><em>when</em><em> </em><em>moving</em><em> </em><em>to</em><em> </em><em>the</em><em> </em><em>other</em><em> </em><em>side</em><em>,</em><em> </em><em>The</em><em> </em><em>positive</em><em> </em><em>Cost</em><em> </em><em>will</em><em> </em><em>become</em><em> </em><em>negative</em><em>.</em>
- <em>This</em><em> </em><em>equation</em><em> </em><em>is</em><em> </em><em>telling</em><em> </em><em>us</em><em> </em><em>the</em><em> </em><em>mark-up</em><em> </em><em>price</em><em> </em><em>when</em><em> </em><em>the</em><em> </em><em>selling</em><em> </em><em>price</em><em> </em><em>and</em><em> </em><em>cost</em><em> </em><em>is</em><em> </em><em>known</em><em>.</em>
- <em>Mark</em><em> </em><em>up</em><em> </em><em>is</em><em> </em><em>the</em><em> </em><em>Cost</em><em> </em><em>that</em><em> </em><em>is</em><em> </em><em>not</em><em> </em><em>given</em><em>,</em><em> </em><em>In</em><em> </em><em>other</em><em> </em><em>words</em><em> </em><em>Mark</em><em> </em><em>up</em><em> </em><em>is</em><em> </em><em>the</em><em> </em><em>price</em><em> </em><em>subtracted</em><em> </em><em>after</em><em> </em><em>giving</em><em> </em><em>discount</em><em> </em><em>on</em><em> </em><em>something</em><em>.</em><em> </em>
Answer:
false
Step-by-step explanation:
the anwser would be 45=10 witch is not true