Using inverse operations is a direct way to solving equations

What is the Golden Rule for solving equations?

Answers

Answer 1

Answer:

Do unto one side of the equation, what you do to the other!

Step-by-step explanation:

An equation is like a balance scale. If we put something on, or take something off of one side, the scale (or equation) is unbalanced. When solving math equations, we must always keep the 'scale' (or equation) balanced so that both sides are ALWAYS equal.

Answer 2

Answer:

Keeping the equation balanced.

Step-by-step explanation:

You need to keep the equation balanced on both sides of the equal sign, like when you need to get rid of the number 4 on one side you have to do the same thing on the other side.


Related Questions

i need help please help

Answers

Answer:

a) 2/10

b) 5/10

c) 3/10

Step-by-step explanation:

There is 10 balls in the jar so the probability of each color depends on how many balls in each color and how many balls in the jar.

(A) 1/5
(B) 1/2
(C) 3/10

Solve the system of equations below by elimination. Write your answer as an ordered pair. e.g. (2,3)

Answers

Answer:

(45,35)

Step-by-step explanation:

1 - Stack the equations on top of each other

3x - 4y = -5

4x + 4y = 40

2 - We can eliminate by subtracting the bottom equation from the top equation

 3x - 4y = -5

- 4x - 4y = 40

3 - The y's cancel out, leaving us with...

 3x = -5

- 4x = 40

4 - Continue simplifying

-1x = -45

5 - We can switch the -1x with -x to make things simple

-x = -45

6 - Positize (make it positive) the statement

x = 45

7 - Halfway there! Substitute the x value into one of the equations

(3 * 45) - 4y = -5

8 - Solve

135 - 4y = -5

Minus 135 on both sides

-4y = -140

Divide by -4 on both sides

y = 35

9 - Here is your answer!!

x = 45

y = 35

(45,35)

(45,35)
hope this helps

How many terms are in each factor of the expression 9(7 + 2x)?

Answers

Answer:

2 terms i believe if i am wrong i apologize

Step-by-step explanation:

.

It’s two terms but I might be wrong

The ratio 3:5 can also be used to describe a relationship between the animals
in the field on Monday. What relationship could this ratio describe? Show or
explain how you got your answer.
Enter your answer and your work or explanation in the space provided.
(The ratio for the animals on Monday was 18:12)

Answers

Answer:

18/12

Step-by-step explanation:

The answer is definitely 18:13

Answer questions #13 & 14. Number 13: What is the system shown? Number 14: Type the correct answer in the box. THE IMAGE BELOW SHOWS BOTH QUESTIONS.

Answers

Answer:

124

Step-by-step explanation:

248)

The answer is definitely 124

A school chorus has 90 sixth-grade students and 75 seventh-grade students. The music director wants to make groups of performers, with the same combination of sixth- and seventh-grade students in each group. She wants to form as many groups as possible. What is the largest number of groups that could be formed?

Answers

Answer:

The music director can make 15 groups of performers with 6 sixth grade students and 5 seventh grade students in each group.

Step-by-step explanation:

The person that answered is correct

What is the value of y in the triangle?



Enter your answer in the box. Round your final answer to the nearest hundredth.

y =
ft

A right triangle. The hypotenuse is labeled as 15 feet. The perpendicular is labeled as y. The alternate base angles are labeled as right angle and 26.5 degrees, respectively.

Answers

55°
We have to keep in mind, that the sum of three angles of a triangle is always 180°. This data will help us to solve this mathematical problem. Hence,the value of y
All the angles add up to 180 degrees therefore the answer is
55 degrees

Answer this question please :)

Answers

Answer:

Step-by-step explanation:

9*7=63

63

triangle area=21

63+21=84

Answer:

Its 63

Step-by-step explanation:

Area is founded by multiplying the width and height. Therefore, 9 * 7 is 63. Thus is ur answer.

What is the area of the shaded region? Use 3.14 for pi.

Answers

Answer:

= 50.24

Step-by-step explanation:

the small circle is 28.26 and the big circle is 70.5 so 78.5 - 28.26 = 50.24

Your answer is gonna be 50.24

Questions on file. Pls halp

Answers

[tex] \large{ \tt{❋ \: EXPLANATION}} : [/tex]

The formula to find out the volume of a rectangular prism is V = l × b × h where V is the volume , l = length , b = breadth & h = height.

We're provided the figure of trapezium in the second attachment. The formula to fInd out the area of trapezium is A = [tex] \tt{ \frac{1}{2} h(a + b)}[/tex] where a and b are the opposite parallel sides and h be the height of a trapezium.

[tex] \large{ \tt{❃ \: SOLUTION}} : [/tex]

In the first picture , we're provided - Length ( l ) = [tex] \frac{7}{4} [/tex] cm , breadth ( b ) = [tex] \frac{3}{2} [/tex] cm and height ( h ) = [tex] \frac{1}{2} [/tex] cm. Now, plug these known values and them find out the volume of given rectangular prism.

[tex] \large{ \tt{❁ \: VOLUME \: OF \: RECTANGULAR \: PRISM \: ( \: V \: ) = l \times b \times h}}[/tex]

[tex] \large{ {⟶ \: \frac{7}{4} \times \frac{3}{2} \times \frac{1}{2} }}[/tex]

To multiply one fraction by another , multiply the numerators for the numerator and multiply the denominator for its denominator and reduce the fraction obtained after multiplication into lowest term if possible.

[tex] \large{ ⟶ \frac{7 \times 3 \times 1}{4 \times 2 \times 2} }[/tex]

[tex] \large{⟶ \frac{21}{16} \tt{ {cm}^{3} }}[/tex]

Hence , the volume is [tex] \boxed{ \frac{21}{16} }[/tex] cubic centimetres.

--------------------------------

In the second attachment , we're provided - 6ft and 7 ft are the opposite parallel sides and 3 ft is the height of the given trapezium.

[tex] \large{ \tt{✺ \: AREA \: OF \: A \: TRAPEZIUM = \frac{1}{2} h(a + b)}}[/tex]

[tex] \large{ ⟶ \frac{1}{2} \times 3(6 + 7)}[/tex]

[tex] \large{⟶ \: \frac{1}{2} \times 3 \times 13 }[/tex]

[tex] \large{⟶ \frac{39}{2} \tt{cm}^{2} }[/tex]

Hence , The area of trapezium is [tex] \boxed{ \frac{39}{2} \tt{cm}^{2} }[/tex]

And we're done ! ♪

[tex] \large{ \# \: \mathfrak{StayInAndExplore \:☂ }}[/tex]

▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁

Answer:

1)

V = l * w * h

7/4 * 3/2 * 1/2 = 21/16 cm^3

2)

A = a+b ÷ 2 * h

6 + 4 = 10 ÷ 2 = 5

5 * 3 = 15 ft^2

Consider this expression.

6 x +24

Which of the following are equivalent to the expression?
Select the three equivalent expressions.

A. 6(x +4)
B. 6(x + 24)
C. 3(12 + 2x)
D. 2(3x + 12)
E. 3х + 3 + 20 + 4х
F 4x + 12 + 2x + 12

Answers

A
D
F
That is the correct answer
It would be F,B,D because they all make sense together all you have to do is solve them but these are correct

Brainliest!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Answers

I got 1.2 I found this because the smaller model is 60% the size of the larger model same with the side NJ
I’m pretty sure it is 5.4

PLS HELP :(

At the Manchester Ice Cream Parlor, one group of friends ordered 1 small serving of ice cream and 1 large serving of ice cream for $5. Another group of friends ordered 4 small servings of ice cream and 5 large servings of ice cream for $24. How much does the ice cream cost?

The ice cream costs $__ for a small serving and $__ for a large serving.`

Answers

large is $4
small is $1

Answer:

$24

Step-by-step explanation:

5 large servings = 4 + 4 + 4 + 4 + 4 = $20

4 small servings = 1 + 1 + 1 + 1 = $4

20 + 4 = $24

The ice cream costs $1 for a small serving and $4 for a large serving.

~ LadyBrain

Which expressions are equivalent to
62
?
Select all that apply.
O 6-8
7.12
6-2
6
7
6
712
712

Answers

I don’t understand eaither sorry

help mm m mn30id8u9309ikhojkri85ujj5t98ujt

Answers

Answer:

94%

Step-by-step explanation:

The big block is 10 by 10 or 100 little blocks

94 blocks are shaded

94/100 blocks are shaded

Percent means out of 100

94%

Answer:

The answer is 94%

Step-by-step explanation:

The square is 10 by 10, so there's 100 small squares and there's 6 missing

100-6 is 94.

The perimeter of a square is 100 feet. What is the length of one of its​ sides? Explain your work.

Answers

Answer:

25

Step-by-step explanation:

to find the perimeter you add up all the sides and since it's a square and squares have all four equal sides

you just divide 100/4=25

4 sides of a square. Each side of a square is equal. You said the perimeter is 100. So if we put it in an equation, lets say S = Side. 4s=100. Now we just divide. s=25

Each side is 25

Thank or brainliest if helpful :D

answer asap please and thank you look at the image

Answers

Answer:

4x=36

Step-by-step explanation:

4x=36

x=36/4

x=9

Other equation

36/4=x

for example:

6x=36
36/6=6

you could also use any of the following:

1x=36
36/1=36

2x=36
36/2=18

3x=36
36/3=12

4x=36
36/4=9

etc.

help i'll mark brainliest thank you

Answers

Answer:

Q1: B

Q2: D

Q3: B

Q3: C

explanation:

Answer:

Q1 : D = 4.5

Q2: A and C = 22/7 and 3. 14

Q3: C = 36

Q4: B = 28.5

Step-by-step explanation:

plz mark brainliest :)

Valentino needs 4 1/2 pounds of chicken for a recipe. He already has
2 3/4 pounds of chicken. How many more pounds of chicken does Valentino need?

Answers

Answer:

Valentino needs 1 [tex]\frac{3}{4}[/tex] more pounds of chicken for the recipe.

Step-by-step explanation:

You just need to know how to subtract fractions.

Valentino needs 4 and 1/2 pounds of chicken for a recipe, and he already has 2 and 3/4. We want to know how many more pounds of chicken we need, so you subtract.

4 1/2 - 2 3/4 = 4 2/4 - 2 3/4

= 1 3/4

Valentino needs 1 and 3/4 pounds of chicken still.

Answer:

c

Step-by-step explanation:

easy math please help i'll mark brainliest

Answers

Answer:

D, D, A, C

Step-by-step explanation:

Congruent means equal.

T and r are alternate angles

Vertically opposite angles are equal

Y is 47 degrees because since the full angle is 90 degrees, subtract:

90-43 = 47

Hope this helps :)

-jp524

47 I hope this helps you

Which of the expressions below are equivalent to 0.5( 4x + 12)
A. 8x
B. 2x + 6
C.16x
D. 4x

Answers

The correct answer is B.
0.5(4x + 12)
2x + 6
The correct answer is B.

2 __ a solution of 4 = k/4

is it or is it not

Answers

[tex]k = 16[/tex]

Step-by-step explanation:Question

[tex]4 = \frac{k}{4} [/tex]

First, make k as the Subject

[tex]4 \times 4 = k[/tex]

Now simply Solve it

[tex]k = 16[/tex]

Hope this helps you.

Have a nice day!

Good luck on your Assignment!!

Yes it is because 2 4s = 16

Please help me! Will give Brainliest!!

Answers

Answer:

18 units

Step-by-step explanation:

Answer:

18 units that is the answer. :)

Find the area of the parallelogram:

Answers

Answer:

117

Step-by-step explanation:

13x9

A=bh
B= 13in
H=9in
A= 9*13=117in2

1. to replace a variable in a mathematical expression with an actual value
variable
2. a value of the variable that makes an algebraic sentence true
solution
3. a system for simplifying expressions that ensures that there is only one right answer
order of operations
4. a letter used to represent an unknown number or quantity
equation
5. a mathematical statement that shows two expressions are equal using an equal sign
substitute

Answers

Answer:

what is the question so i can help you, i'm confused

PLZ HELP 30 PTS ANSWER FAST AND I GIVE BRAINLIEST AND 5 STARS TO THE PEOPLE WHO DON'T GET BRAINLIEST!!!!!
Mr. Jacobs is going to make a histogram of the test scores from the last math test he gave. He plans to first organize the data into a stem-and-leaf plot and then make the histogram from the stem-and-leaf plot. The test scores are listed below.

79, 82, 65, 61, 94, 97, 84, 77, 89, 91, 90, 83, 99, 71, 68, 77, 87, 85

Which of the following histograms represents this data?

Answers

Answer:

4

Step-by-step explanation:

Answer is 4 hope this helps

hey dale plzzzz helppp

Answers

Answer:

Step-by-step explanation:

To find the mean absolute deviation of the data, start by finding the mean of the data set. Find the sum of the data values, and divide the sum by the number of data values. Find the absolute value of the difference between each data value and the mean: |data value – mean|.

12+ 12+ 14+ 16+17+18+18= 123

hold up one

123 I think and if it not sorry

You AND six friends play on a basketball team. A sponsor paid $100 for the league fee for the season, x dollars for EACH player’s T-shirt, and $68.25 in total for trophies. Write a simplified expression for the total amount the sponsor paid for the season

Answers

Answer:

7x + 168.25

Step-by-step explanation:

Umm I wasn't completly sure but good luck!

7x + 168.25 is the answer

yoooooooooooooooooooooooooooooooooooooooooo brainliest

Answers

Answer:

Step-by-step explanation:

wassup dont give my idiot self brainliest

Answer:

1124 thin crust pizzas

Step-by-step expl

anation:

What are the vertices of the resulting image A’B’C’D’E after rotating the figure 90 degrees about the origin?

Answers

Answer:

45

Step-by-step explanation:

45 :))) hope that helps
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