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Liono4ka [1.6K]
2 years ago
6

Definition and example of variable

Mathematics
2 answers:
mina [271]2 years ago
7 0

Answer:

a varible is a unknown quanity that is represented by a letter for example 'x ' is an variable

Step-by-step explanation

Studentka2010 [4]2 years ago
6 0

Answer:

Step-by-step explanation:

Definition: A letter that is placed in an unknown number place.

Example: 8+B+9

        The variable would be B.

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Help me please and no links
Burka [1]

Answer:

x = -2    

x=-12

Step-by-step explanation:

5 | x+7| +14 = 39

Subtract 14 from each side

5 | x+7| +14-14 = 39-14

5 | x+7|  = 25

Divide each side by 5

5 | x+7| /5 = 25/5

| x+7|  = 5

Make two equations, one positive and one negative

x+7 =5     x+7 = -5

Subtract 7 from each side

x+7-7 = 5-7    x+7-7 = -5-7

x = -2               x=-12

7 0
3 years ago
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22 is 9% of what number? (round to the nearest tenth)
Vera_Pavlovna [14]
22/x=9/100
22*100=9x
2200=9x
2200/9=x
244.4
5 0
2 years ago
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The first company charges $40 per backpack and a $10 shipping fee for the order and the second company charges $38 per backpack
nata0808 [166]

Answer:

Step-by-step explanation:POOHSHIESTYDATSMYDAWGBUTPOOHYKIMREALLYSHIESTY

6 0
2 years ago
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Endpoint 1: (-1,2)<br> Midpoint: (9,-6)<br> Endpoint 2=
Vlad [161]

Answer:

(19 , -14)

Step-by-step explanation:

Find the distance in between each x & y for a coordinate.

Let: (x₁ , y₁) = (-1 , 2)

Let: (x₂ , y₂) = (9 , -6)

From x₁ ⇒ x₂: 9 - (-1) = 10

From y₁ ⇒ y₂: -6 - 2 = -8 = 8*

*Remember that distance cannot be negative, but for the sake of this question, we will leave it as -8.

The distance between the x points are in intervals of 10. The distance between the y points are in intervals of 8. Add 10 & subtract 8 to their respective numbers to get endpoint 2:

(9 (+ 10) , -6 (- 8)) = (19 , -14)

Endpoint 2 = (19 , -14)

~

7 0
3 years ago
A family spent $65 on dinner and left a 20% tip. What was the total cost of their meal?
Oxana [17]

Answer: B, $78

Step-by-step explanation:

If the tip is 20% of the dinner cost, then we have to first find what is 20% of 65.

20% x 65 = 13. So the tip for the dinner is 13 dollars.

Now we have to add it to the original dinner cost.

65 + 13 = 78.

Therefore, the total cost of their meal is 78 dollars. So the answer is B, $78!

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3 years ago
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