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umka2103 [35]
2 years ago
9

What is a variable in mathematics?

Mathematics
2 answers:
Dmitrij [34]2 years ago
7 0

Answer:

variable, In algebra, a symbol (usually a letter) standing in for an unknown numerical value in an equation. Commonly used variables include x and y (real-number unknowns), z (complex-number unknowns), t (time), r (radius), and s (arc length).

Lubov Fominskaja [6]2 years ago
7 0

Answer:

variable, In algebra, a symbol (usually a letter) standing in for an unknown numerical value in an equation. Commonly used variables include x and y (real-number unknowns), z (complex-number unknowns), t (time), r (radius), and s (arc length).

Step-by-step explanation:

In Maths, a variable is an alphabet or term that represents an unknown number or unknown value or unknown quantity. The variables are specially used in the case of algebraic expression or algebra. For example, x+9=4 is a linear equation where x is a variable, where 9 and 4 are constants.

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The soccer net in Peter's back yard is 5 1/2 feet high, but only 4 feet wide. Jill's soccer net is also 5 1/2 feet high, but is
alina1380 [7]

Answer:

it is 3 times larger

I know because i found the area of Peter and Jill's net and divided the area of Jills net by peters net

Step-by-step explanation:

Area = height x width

Area pf soccer net in Peter's back yard = 51/2 x 4 = 22 feet^2

Area of jill's soccer net = 51/2 x 16 = 66 feet squre

difference in area = 66/22 = 3

6 0
3 years ago
A paint can has a radius of 4 inches and a height of 15 inches. What is the volume of the paint can? Round to the nearest tenth.
Archy [21]

Answer:

V=753.6\ \text{inches}^3

Step-by-step explanation:

Given that,

Radius of a paint can, r = 4 inches

Height of a paint can, h = 15 inches

We need to find the volume of the paint can. We know that the shape of a paint can is in the form of cylinder such that the volume of cylinder is given by :

V=\pi r^2h

Substituting all the values we get

V=3.14\times (4)^2\times 15\\\\V=753.6\ \text{inches}^3

So, the volume of the paint can is 753.6 cubic inches.

5 0
3 years ago
What are the coordinates of the point that is 1/6 of the way from a(14 -1) to b(-4 23)
soldi70 [24.7K]

9514 1404 393

Answer:

  (11, 3)

Step-by-step explanation:

That point is ...

  P = a + (1/6)(b -a) = (5a +b)/6

  P = (5(14, -1) +(-4, 23))/6 = (70-4, -5+23)/6 = (11, 3)

The point of interest is (11, 3).

7 0
3 years ago
Read 2 more answers
3-(2c-8)=7 pls answer asap my homeworks almost late i need an answer fast
Marrrta [24]

Answer:

c=2

Step-by-step explanation:

hope it helps :)

Simplifying

3 + -1(2c + -8) = 7

Reorder the terms:

3 + -1(-8 + 2c) = 7

3 + (-8 * -1 + 2c * -1) = 7

3 + (8 + -2c) = 7

Combine like terms: 3 + 8 = 11

11 + -2c = 7

Solving

11 + -2c = 7

Solving for variable 'c'.

Move all terms containing c to the left, all other terms to the right.

Add '-11' to each side of the equation.

11 + -11 + -2c = 7 + -11

Combine like terms: 11 + -11 = 0

0 + -2c = 7 + -11

-2c = 7 + -11

Combine like terms: 7 + -11 = -4

-2c = -4

Divide each side by '-2'.

c = 2

Simplifying

c = 2

7 0
3 years ago
Read 2 more answers
Can someone helpp.im new​
RoseWind [281]

Answer:

it would be 22

Step-by-step explanation:

8 0
3 years ago
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