Mathematics Middle School

What property was applied to solve the equation below?

0.36 x = negative 1.8
0.36 (divided by 0.36) x = negative 1.8 (divided by 0.36)
x = negative 5

Answers

Answer 1

Answer:

Division property

Step-by-step explanation:

The property which states that we can divide both side of the equation by the same non-zero number is called the division property of equality.

The goal of dividing an equation is to isolate the unknown variable on one side.

For example, let the equation be:

2×x=10

Since the unknown variable x is being multiplied by the number 2, to isolate the variable an inverse operation needs to be applied - division:

2×x÷2=10÷2

Careful! Never forget to write the same operation on both sides of the equation! When doing so, the solution of the equation stays the same, i.e. we get an equivalent equation.

Step-by-step explanation:

Related Questions

Find the diameter of a circle if its circumference is 53.38 inches. Use π ≈ 3.14. Round to the nearest hundredth

Answers

Answer:16.9

Step-by-step explanation:

We know that the formula for C= πd. So to find the diameter of a circle we work backwards from its circumference. Division is the opposite of multiplying, so we divide its circumference by π: 53.38 / 3.14 = 17. To fully check: C= πd = π(17) = 53.38. The diameter is 17 inches. Hope this helps!

A map company used a scale of 1 inch : 380 meters to depict the heights of different mountains. What is the height of a mountain on map, which is actually
3420 meters high?
The height of the mountain on the map is
inches

Answers

Answer:

more info or is that it

Step-by-step explanation:

Help me and you get good luck for the rest of 2021 XD
John bought 15 cookies and ate 3 of them. He ate ____% of the cookies. (Make sure to enter the answer using numbers only. Do not enter special characters such as the percent symbol.)

Answers

Answer:

John ate 20% of the cookies

Step-by-step explanation:

Answer:

i dont know if its right but i think 5% bc

Step-by-step explanation:

15 devied by 3 is 5 but i dont  know

pls help its a grade

Answers

Answer:

9

Step-by-step explanation:

3 divided by 9 is 3

3+2=5

Answer:

x=9

Step-by-step explanation:

The model represents the equation 3x – 2 < 4. What is the solution for this inequality?
A.)x < 6
B.)x < -3
C.)x < -2
D.)x < 2

Answers

Answer:

D

X < 2

Explanation:

Step-by-step explanation:

x is lesser than 2

3x>4+2

x>6/3

x>2

Which of the following numbers can be expressed as a decimal that terminates?

3 over 2 , 2 over 3 , 3 over 4 , 5 over 7

A. 3 over 2 and 2 over 3
B. 3 over 4 and 5 over 7
C. 3 over 2 and 3 over 4
D. 2 over 3 and 5 over 7

Answers

D is the anwser had this on my test last week

Please help me with this i might give you brainliest for this

Answers

Answer:

9 cm^2

Step-by-step explanation:

you would do 3 * 3, which would give you 9, then divide it by 2 to get 4.5, then add 4.5 to itself, and that is your answer

Click on the correct answer.

The Malt Shop sells milkshakes at a 90% markup. If the Malt Shop pays $1.20 per milkshake, what is the price for customers?
A $1.08
B $1.31
C $2.10
D $2.28

Answers

Answer:

A, $1.08

Step-by-step explanation:

1.20 / 90 = 1.08

use a calculator

It’s d because 90% of 120 is 1.08 so you add the 1.08 to the 1.20 and you get 2.28 trust me it’s correct

QUICK HELPPP!!!!!!!!!!!!!!!!!!

Answers

-7x+3 hope that Thais helps

pls help me i dont understand

Answers

Answer:

[tex]392[/tex] [tex]m^3[/tex]

Step-by-step explanation:

To find the volume you need to multiply the length, width and height. Our height is 7m, our width is 8m and our length is 7m, and when multiplying you get 392.

Answer:

The answer is 392

Step-by-step explanation:

you multiply 7 times 7 times 8=392

                   don't forget to give me brainliest

what is this correct answer?

Answers

Answer:

equation: 400 + 0.04x

amount: 400+0.04(400) = 416

Step-by-step explanation:

Answer:

equation: 400 + 4% = 416

amount: 416

Step-by-step explanation:

Hope this helps!

10 points if you answer this

Answers

Answer:

I would but I cant see the image. Comment on this answer the question I may be able to help you.

Step-by-step explanation:

Answer: 29, 2,64 i think

sorry if i am wrong

Step-by-step explanation:

pls mark brainliest or just press thanks

Mai had $14.50. She spent $4.35 at the snack bar and $5.25 at the arcade. What is the exact amount of money Mai has left?

1. $9.60
2. $10.60
3. $4.90
4. $5.90

Answers

Answer:

3. 4.90

Step-by-step explanation:

So its pretty simple all we need to do is

14.50-4.35-5.25= 4.90

I hope this helps

Sharon invested $5000 in a bond for 2 years. The total interest earned on the investment was $600. What was the interest rate on the investment?

Answers

Answer:

1200 i think thats right

Step-by-step explanation:

hope it helps

welp
If 210 people said football was their favorite sport to watch, how many people were surveyed?

Answers

88 people who surveyed said football was their favorite

Answer:

840

Step-by-step explanation:

25% liked watching soccer

25% = 210

100%= More

100/25 * 210=840

When solving the equation, which is the best first step to begin to simplify the equation?

Negative 2 (x + 3) = negative 10

Answers

The first step would be to multiply negative 2 times (x+3)

Answer:

(negative 2) (Negative 2) (x + 3) = negative 10 (negative 2)

Negative one-half (negative 2) (x + 3) = negative 10 (negative one-half)

StartFraction negative 2 over 2 EndFraction (x + 3) = StartFraction negative 10 over 2 EndFraction

StartFraction negative 2 over negative 10 EndFraction (x + 3) = StartFraction negative 10 over negative 10 EndFraction

Plz help thank you :) Karen spent $32 on fruit at the grocery store. She spent a total of $40 at the store. What percentage of the total did she spend on fruit?

Answers

32 is 80% of 40. Karen spent 80% on fruit and 20% on misc items.
Answer: 80%

Answer:

she would have spent 80% of the total on fruit

Step-by-step explanation:

Of the 800 participants in a marathon , 120 are running to raise money for a cause.How many participants out of 100 are running for a cause?

Answers

Answer:

║∅║------------------Hello Friend----------------║∅║

Your answer should be:

15% is running for a cause.

120 out of 800 are running for a cause.

So out of 100,  120 / 8

= 15 are running for a cause.

15 out of 100 = 15%.

Step-by-step explanation:

I hope this helped.

(Brainliest would be appreciated)

Have a great day!

Answer:

15% is running for a cause.

Step-by-step explanation:

What the other person put as the explanation is accurate so I did not just rewrite it.

You can look at their answer for the explanation!

If you cut the cylinder perpendicular to the base, meaning straight up and down, what 2D shape is created by the cross section ?
A. oval
B. rectangle
C. circle

Answers

Answer: rectangular I think

Step-by-step explanation: I’m not smart sorry if I did it wrong

Rectangle one reason there is a perpendicular cut up and down it’s a rectangle.

I NEED HELP ILL GIVE U BRAINS: PLZ

Answers

Answer:

40, 50, 60, 70, for the top, and 5 for the bottom

Step-by-step explanation:

15/2...7
if the three dots is one number what are all possibel numbers?

Answers

add a photo. this is confusing

please help me with this i will mark brainliest

Answers

Answer:

w=93

Step-by-step explanation:

Answer:

= 93

Step-by-step explanation:

2 MIDDLE SCHOOL QUESTIONS

Answers

Answer:

The answer to number 1 is c the answer to number 2 is c

Step-by-step explanation:

They should both be answer c

Lilian wants to give 1/3 of a pizza to each of 6 girls at her party. Drag and drop the correct equation and answer to find how many pizzas Lilian needs. Lilian can use the equation to find how many pizzas she needs.
Answer choices in photo​

Answers

Answer:

1/3 multiplied by 6 = n

Step-by-step explanation:

1/3 times 6/1 which is the same as 6 is equals to 18

I guess

Equation: 1/3 • 6 = n
Answer: n = 2

Use multiplication to find 40% of 165.
40% of 165 is ______

Answers

Answer:

66

Step-by-step explanation:

Pretty easy ngl

You multiply 40% by 165 to find the percentage: 40%x165 = 66!

Hope this helps <3

Which inequality is true?

Answers

Answer: The answer is -0.5<-0.25

Step-by-step explanation:

A tree initially measured 38 1/2 feet tall. Over the next 5 1/2 years, it grew to a final height of 49 1/2 feet. During those 5 1/2 years, what was the average yearly growth rate of the height of the tree?

Answers

Answer:

2feets per year

Step-by-step explanation:

49,5-38,5=11feets --->this is how much it grew in 5,5years

11/5,5=2feets/year --->this is the yearly rate

I might be a little late but I’m pretty sure it’s 2ft every year

HELP ASAP Capone eats food at a constant rate. The formula below shows how many pounds of food he has remaining (y) after x days.

y=-1.2x+62

How much food does he have left after 15 days of eating? (round to the nearest tenth's place if necessary) (2 points)

Answers

I’m pretty sure that if y is pounds, and x is days than the answer would be 44?

I’m saying that it would be -1.2 x (15) +62 which is 44. Sorry if I’m wrong I’m kinda bad at math lol

Answer:

Step-by-step explanation:

M=-2

I need someone to write down the steps please and solve 4 for me please i will fail

Answers

Step-by-step explanation:

2r - 18 < = 5r + 3

Subtract both side by 3

2r - 18 - 3 <= 5r +3 - 3

Simplify

2r - 21 <= 5r

Subtract both side by 2r

2r - 2r - 21 <= 5r - 2r

Simplify

-21 <= 3r

Divide both side by 3

-21 ÷ 3 <= 3r ÷ 3

Simplify

-7 <= r

1.) k + 4n k = 3 and n = 7 *
5 points
2.) 3f - 6 - 4r when f = 7 and r =-5 *
5 points
3.) 9z + 8h + 2 when z = 3 and h = 7 *
5 points
4.) 3k + 4s when k = 6 and s = -2 *
5 points
5.) 5 + 7c + 9d when c = 3 and d = -3 *
5 points

Answers

1.) 31
2.) 35
3.)85
4.) 10
5.)-1
1. 31
2. -5
3. 85
4. 10
5. -1
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