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3 years ago

What is the value you put into a formula or equation

1 answer:

7 0

Formula is a statement written with group of mathematical symbols that express a relationship.
Equation is type of mathematical formula with sign equal that separates the left side and the right side of the formula.
The value you put into a formula or equation is referred as a variable. The variable is an item ("thing") which can be measured quantitatively and represented by a number. Variables are called variables because they vary, i.e. they can have a variety of values. If a variable has only one value, it is called constant.

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In a packet of 40 Skittles, 12 are red. What percentage of the Skittles are red?

Viktor [21]

Answer:

12/40×100= 30%

Step-by-step explanation:

12/40×100 = 12/2×5 =6×5= 30%

6 0

3 years ago

-8x - 18 + 7 + 2x = 5 - 3x - 4 + x

satela [25.4K]

Answer:

x = -3

Step-by-step explanation:

-8x - 18 + 7 + 2x = 5 - 3x - 4 + x

-8x + 2x + 3x - x = 18 - 7 + 5 -4

-4x = 12

x = -3

4 0

3 years ago

Round to the nearest tenth.

laila [671]

Answer:

8.2 units

Step-by-step explanation:

Given that the only information for our triangle are 2 sides and 1 angle, we must use the Law of Cosines to find side BC

Recall the Law of Cosines

$a^2=b^2+c^2-2bc\cdot cos(A)$

Identify angles and sides

$m\angle A=23^\circ\\a=BC=?\\b=AC=14\\c=AB=6$

Solve for side "a"

$a^2=b^2+c^2-2bc\cdot cos(A)\\\\a^2=14^2+6^2-2(14)(6)\cdot cos(23^\circ)\\\\a^2=196+36-168cos(23^\circ)\\\\a^2=222-168cos(23^\circ)\\\\a=\sqrt{222-168cos(23^\circ)}\\ \\a\approx8.2$

Therefore, the length of line segment BC is about 8.2 units

8 0

2 years ago

How do you Simplify 3x+5-x

liberstina [14]

You get rid of any of the same bariables liike 3x-x is 2x so 2x+5 is the answer

4 0

3 years ago

Explain what a variable is

AleksAgata [21]

A variable is a letter that replaces an unknown number.

7 0

3 years ago