Mathematics Middle School

3m = -18

please help!!!

Answers

Answer 1

Answer:

m = -6

Step-by-step explanation:

3m = -18 (Divide both sides by 3)

3m/3 = -18/3

m = -6

Answer 2

Answer:

m=-6

Step-by-step explanation:

3m=-18

Divide by 3 on each side.

3m/3=-18/3

m=-6

Related Questions

find the value of a and be when x is 12 a= 5x^2/2 b= 2x^2(x-5)/10x

Answers

Answer:

a=360

b=168

Step-by-step explanation:

a=5×12×12/2=5×12×6=360

b=2×12×12×(12-5)/10×12=2×12×7=14×12=164

answer a is 360 and answer b is 180 :)

A fruit juice recipe calls for 2 parts orange juice and 8 parts pineapple juice. Which proportion can be used to find the amount of orange juice, j, that is needed to add to 18 L of pineapple juice?

2 over 8 equals j over 18
8 over 2 equals j over 18
8 over j equals 2 over 18
16 over 18 equals j over 100

Answers

The correct proportion to use to find the amount of orange juice, j, needed to add to 18 L of pineapple juice is:

2/8 = j/18

This proportion relates the ratio of orange juice to pineapple juice in the recipe (2:8) to the amount of orange juice needed to add to 18 L of pineapple juice. By cross-multiplying, we can solve for j as follows:

2/8 = j/18

218 = 8j

36 = 8*j

j = 36/8

j = 4.5

Therefore, you would need to add 4.5 L of orange juice to 18 L of pineapple juice to create the fruit juice recipe that calls for a ratio of 2 parts orange juice to 8 parts pineapple juice.

Answer:

2 over 8 equals j over 18

Step-by-step explanation
2 over 8 equals j over 18

This proportion represents the ratio of orange juice to pineapple juice in the recipe. By setting up the proportion, we can solve for the value of 'j,' which represents the amount of orange juice needed.

So, the correct proportion is:

2 over 8 equals j over 18

Find the area. Use 3.14 for the value of pi. Round your answer to the nearest tenth. diameter = 23.2 m

Answers

Answer:

A = 422.5 m²

Step-by-step explanation:

Given the diameter of the circle = 23.2 m, we must divide this by 2 in order to solve for the radius:

$r = \frac{23.2}{2} = 11.6 m$

Now that we have the radius, we can plug it in using the formula for finding the area of the circle:

A = πr²

A = (3.14)(11.6)²

A = 3.14 (134.56)

A = 422.5 m²

Answer:

18.2

Step-by-step explanation:

22/7x23.2/2square

18.2

Mark me as brianliniest

Susan is buying a ring that is regularly $54.95 and is on sale for 1/2 off. Which expression can Susan use to estimate the amount of the discount on the ring?

Answers

Analyze problem

since it is one half off, only one half remains

so the equation is

x=54.95/2

(answer is 27.475)

Answer:

It should be 27.475

Step-by-step explanation:

54$ divided by 2=27+ the cents=95 divided by 2=47.5

Can someone help me and tell me what this is I dont get it

Answers

Answer:

of the First rectangle Is smaller than the second the factor Is greater than One , if the First and the second are the same the scale factor Is one, and of the First Is bigger than the second the factor Is less than one

so:

a greater

b greater

c less

D greater

e equal

f less

g equal

Answers in bold:

P to Q: greater than 1P to R: greater than 1Q to S: less than 1Q to R: greater than 1S to P: equal to 1R to P: less than 1P to S: equal to 1

========================================================

Explanation:

We have these three rules for scale factors

scale factor > 1, enlarge the image0 < scale factor < 1, shrink the imagescale factor = 1, the preimage and image are identical

With those rules in mind, we have enlargements for these transformations.

P to QP to RQ to R

All of which represent some scale factor larger than 1. We don't have enough information to pinpoint what that scale factor would be.

In other words, if you go from small to big, then you apply some scale factor larger than 1 to enlarge the image.

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

We also have these reductions

Q to SR to P

This is where we go from big to small. The image shrinks and we use some scale factor between 0 and 1.

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

And finally we have these transformations in which the size of the image does not change. Therefore the scale factor is 1.

P to SS to P

The order doesn't matter for this subset, but the order will matter for the other batches of transformations.

Use picture to answer question
Show work for answer

Answers

It’s “D” I’m pretty sure.

The correct answer is :D”

Mary's Time Spent Exercising
Week 1
Sun
Week 2
0 min
Mon
0 min
45 min
Tue
45 min
45 min
Wed
40 min
Thu
45 min
50 min
50 min
Which of the following best explains why the mean is NOT an appropriate indicator of how much time Mary spends exercising on a typical day?
Fri
40 min
35 min
Sat
50 min
0 min
35 min

Answers

Answer: A I believe

Step-by-step explanation: because I said so

Banana Cupcakes
makes 10 cupcakes

1 cup granulated sugar

cup vegetable oil

1 large egg

4 tablespoons sour cream

2 medium-sized ripe bananas, mashed

1 cups all-purpose flour

1 teaspoon baking soda

teaspoon salt

1 teaspoon vanilla extract

pinch of nutmeg

You will use the recipe above to answer the following questions:

This recipe serves 10, but you need to serve 30. What number will you need to multiply the amount of each ingredient by to adjust the recipe? How did you determine this number?
How much vegetable oil do you need for 30 cupcakes?
How much flour do you need for 30 cupcakes?
What is the difference in the amount of vanilla extract you would need for 30 cupcakes?
What is the difference in the amount of salt you would need for 30 cupcakes?
In the real world, even though you make adjustments to a recipe to accommodate the number of people you need to serve, you sometimes round the amount of an ingredient instead of using an exact amount. Which ingredient would it make more sense to round rather than coming up with the exact amount? Why?

Answers

Answer: Hey give me 1 hour and ill answer it I'm doing odessyware rn so Ill get back to you later appreciate yo patients.

Step-by-step explanation:

Here we have a recipe that works for 10 serves.
Then, if we want to make 30 servings, we need to use that recipe 3 times. (because x*10 = 30, then x = 30/10 = 3)
This would be equivalent to multiply each ingredient by 3.
for 30 cupcakes we need:
3 cups of vegetable oil.
3 cups of all-purpose flour
(because for each one of these ingredients we needed only 1 cup to make 10 cupcakes).
for 10 cupcakes we need 1 teaspoon of vanilla.
for 30 cupcakes we need 3 teaspoons of vanilla, the difference is 3 - 1 = 2.
So the difference is 2 teaspoons.
About which quantities we should round are those where we may have mixed numbers or big numbers.
For example, we have 4 tablespoons of sour cream for 10 servings, then for 30 servings we should have:
3*4 = 12 tablespoons.
We could round this down to 10 tablespoons.

Hope this helped

I almost broke my brain doing this so can you give me brainliest answer please thank you

Compare square root of one hundred sixty and one hundred fifteen ninths using <, >, or =.

square root of one hundred sixty is greater than one hundred fifteen ninths
square root of one hundred sixty is equal to one hundred fifteen ninths
one hundred fifteen ninths is greater than square root of one hundred sixty
one hundred fifteen ninths is less than square root of one hundred sixty

Answers

The comparison of the numbers are √160 > √115.9. Hence, the correct option is A.

How to compare the numbers?

The numbers are given as

square root of one hundred sixty and one hundred fifteen ninths

Rewrite properly as

√160 and √115.9

By comparing the radical of both numbers, we have

160 and 115.9

160 is greater than 115.9

Hence, the comparison of the numbers are √160 > √115.9

Answers

72 centimeters......

Find each probability.

Answers

Answer:

5,9

Step-by-step explanation:

I think row A would be 5 and B would be 9 im sorry if im wrong

It’s just 5 and 9–

5 on top 9 on bottom

I will giver brainliest to the person with the most detailed answer. That means tell me how you got ur answer. And the person who answers with the most clear explanation as well. Good luck!! This is due in 8 minutes as well. And pls number ur answers in order so it is clear!!

Answers

Answer:

(12,13)

Step-by-step explanation:i just guessed

11: the y axis is the vertical line. the red line crosses the y axis at -3 which means that you’ve found your y-intercept for the red line. the blue line crosses the y axis at 1 and for the slope it’s rise/run so if it’s going down it’s a negative

You have a pizza with diameter 12
2
3 in., and a square box that is 12.65 in. across. Write 12
2
3 as a decimal. Can you fit the pizza inside the box?
What is the decimal expansion for 12
2
3?
A.12.6
B.12.65
C.12.6
D.12.66
pls help me

Answers

Answer:

D is the right choice and no you cannot fit the pizza inside the box.

Step-by-step explanation:

D is the answer because to turn 2/3 into a decimal you would divide 2 by 3 and the answer you would get would be 0.66666666666...You would then add 12 to the answer and get 12.6666... Once you get this answer you would round it to the hundredths to get 12.67 but since that is not an option you could use D, 12.66 inches.

Answer:

I believe the answer is D.

Step-by-step explanation:

GOOGLE

We are learning Dividing with fractions

$We are learning Dividing with fractions$

Answers

There A method my teacher taught me it’s called KCf which kcf keep change flip which you keep your first fraction like 1/4and 2/3 You change the 2/3 to 3/2 ok Hope that helps you

Answer:

1. The numerator

2. the denominator of the fraction

3. 6/8

4. 2 badges

Step-by-step explanation: for number 4

Mr.Garcia is making badges. Each badge has 3/8 yards of ribbon. He starts with 3/4 yard of ribbon. We need to find how many badges he can make. The length of each badge is 3/8 yard of ribbon. The total length of the ribbon is 3/4 yard. To find the number of the badges is the quotient of the division of the total length of the ribbon by the length of each badge. The number of badges = the length of the ribbon ÷ the length of the badge. The number of badges = 3/4 ÷ 3/8. To solve the division of two fraction we change the division sign by the multiplication sign and reciprocal the fraction after the division sign. The number of the badges = 3/4 × 8/3. The number of the badges = 3*8/4*3=24/12=2. So he can make 2 badges

what does "a" equal in this problem? 8= 2^a

Answers

Answer:

Step-by-step explanation:

what is the answer i need answers now

Answers

Answer: 0.27, 1/3, 1 1/4, 1.35

Step-by-step explanation:

Answer:

D. 0.27. 1/3. 1 1/4. 1.35

Step-by-step explanation:

1/3 = 0.3

1 1/4 = 1.25

1. 0.27

2. 0.3 or 1/3

3. 1.25 or 1 1/4

4. 1.35

please help thanks im not good at rounding

Answers

hi <3

divide them:

1250 / 103 = 12.135 ...

as the number after where we want to round it to is 1, we have to round down

thus your answer would be 12 feet

hope this helps :)

Answer: 12.1

Step-by-step explanation: the tenth is the number right after the decimal point. When rounding you only change the number if the number behind it is 5 or above. If it is 4 or below then leave it alone. After rounding you only leave the number you just rounded the rest disappear

Which expression is equivalent to 50y2+10y?
−10y(5y+1)
10y(5y+1)
−10y(5y−1)
10y(5y−1)

Answers

Answer:
10y(5y+1)

Explanation:
When expanding brackets you multiply everything on the inside by the outside.

So 10y x 5y = 50y squared

10y x 1= 10y

Put them together now. 50y squared + 10y

Hope this helped!

10y(5y+1)

Explanation:

Shenenenewne

Pls, help due in 15. I will make brainliest.

Answers

Step-by-step explanation:

1. Angles are complementary which means they add up to 90°

3x + 6 + 2x - 11 = 90° (angles are complementary)

5x - 5 = 90

5x = 90 + 5

5x = 95

x= 95/5

x= 19

Therefore

m∠G = 3x+6

= 3(19)+6

= 63°

m∠H= 2x-11

= 2(19)-11

= 27°

2. Angles are supplementary which means they add up to 180°

m∠J + 29 = 180°

m∠J= 180-29

m∠J =151°

yesterday the temperature at sunrise was -3F . at sunset the temperature was 25 degrees warmer rhan the temperature at sunrise which of the following shows the temperature in degrees fahrenheit at sunset

Answers

Answer:

22° F

Step-by-step explanation:

Answer:

the answer should be 22F

Step-by-step explanation:

Giving brainliest if you answer this correct.

A bag contains 6 red and 10 black marbles. If you pick a marble from the bag, what is the probability that the marble will be black? Write it in fraction, decimal, and percent.

Answers

Btw do not use the link on the other person who answered!

Answer:
add 6 and ten to get 16. Since there are only 6 red, you do 6/16 = 0.375

So the answer is 37.5%

Percentage: 37.5%
Decimal: 0.375
Fraction: 3/8

The equation y = 2.4x represents a proportional relationship. What is the constant of proportionality? * 2.4, y, x, 1/2.4

Answers

Answer:

18=x y z mc squared

Step-by-step explanation:

taylor is stumped because the double number line indicates that 1.25 lemonades cost $1 but they wat to know the cost of 1 lemonade. what should riley add to the double number line to help taylor

Answers

Answer:

1 cup = $0.8

Step-by-step explanation:

$1 = 1.25 cups

$2 = 2.5 cups

$3 = 3.75 cups

$4 = 5 cups

4/5 = 0.8

1 cup= 0.8
$1= 1.25 cups
$2= 2.50 cups
$3= 3.75 cups

PLEASE HELP QUICKLY!

Answers

Area: 392.7ft²

100π(Two half circles' area) + 25π(Quarter circle's area) = 392.7ft²

Perimeter:157.1

40π(two hald circles' perimter)+10π(Quarter circle's perimter)

Area : 392.7ft squared

PLEASE HELP WILL MARK BRAINLIEST

Answers

Answer: I need the picture of the triangle

Step-by-step explanation:

The answers are (-3,-2),(-1,0)and (0,-6)

Based on the figure below, what is the value of x? (5 points)
A right angle is shown divided in two parts. The measure of the angle of one part is 50 degrees and the measure of the other part is 5x plus 15 degrees.
a 5
b 7
c 11
d 15

Answers

Answer: a. 5

Since the angle is right, we know it is equal to 90 degrees.

Using the information provided, we can set up an equation.

50 + 5x + 15 = 90

Simplifying the equation, we get:

5x + 65 = 90

Subtracting 65 from both sides, we get:

5x = 25

Dividing both sides by 5, we get:

x = 5

A because you need to simplify subtract and then you get your answer

Mandissa and Katelynn each make a pitcher of strawberry lemonade. Mandissa wants her drink to be more strawberry flavored with less lemon. She uses 2 1/4 times as many strawberries as Katelynn uses, and 2/3 the amount of lemons. If Katelynn uses 1/3 cup of strawberries and 6 lemons to make her pitcher of lemonade, how many strawberries and lemons will Mandissa use?

A:) 3 cups of strawberries and 6 2/3 lemons
B:) 1 11/16 cups of strawberries and 4 lemons
C:) 3 cups of strawberries and 4 lemons
D:) 1 11/16 cups of strawberries and 6 2/3 lemons

Answers

Answer:

B:) 1 11/16 cups of strawberries and 4 lemons

Step-by-step explanation:

You want to know how many cups of strawberries and how many lemons Mandissa uses in her lemonade if she uses 2 1/4 times 3/4 cups of strawberries, and 2/3 times 6 lemons.

Strawberries

Mandissa's recipe has strawberries in the amount of ...

(2 1/4) × (3/4 cup) = (9/4)(3/4) cups = 27/16 cups = 1 11/16 cups

Lemons

Mandissa's recipe has lemons in the amount of ...

(2/3) × (6 lemons) = (2/3)(6) lemons = 4 lemons

Mandissa uses 1 11/16 cups of strawberries, and 4 lemons, matching choice B.

<95141404393>

The simplified form of $\frac{\sqrt[3]{81} }{\sqrt[3]{-3} }$

Answers

Answer:

-3

Step-by-step explanation:

$\frac{\sqrt[3]{81} }{\sqrt[3]{-3}}\\$

the index of both the numerator and denominator are "3", so they cancel each other out:

$\frac{\sqrt{81} }{\sqrt{-3}} \\=\frac{9}{-3}\\ =-3$

Hope this helps! :)

Answer:

-3

Step-by-step explanation:

Giving 50 points and brainliest to whoever answers this right

Answers

I think it is 1 1/3 from getting the unit rate of 2 2/3 divided by 2

One and one third is the correct answer.

A triangular prism is attached to a rectangular prism as shown below.

If w = 8 inches, x = 5 inches, y = 20 inches, and z = 11.3 inches, what is the total surface area of the EXTERIOR FACES of the figure?

(Answer choices in picture!!) (I WILL GIVE BRAINLIEST)

Answers

To find the total surface area of the exterior faces of the figure, we need to calculate the surface areas of each individual shape and then add them together.

Surface area of the triangular prism:
The triangular prism has two triangular faces and three rectangular faces.

The triangular faces have base (x) of 5 inches and height (y) of 20 inches. The surface area of each triangular face is (1/2) * base * height = (1/2) * 5 * 20 = 50 square inches.

The rectangular faces have dimensions (w, y, and z) of 8 inches, 20 inches, and 11.3 inches, respectively. The surface area of each rectangular face is length * width. Adding the surface areas of the three rectangular faces, we get: 2 * (w * y) + 2 * (w * z) + 2 * (y * z) = 2 * (8 * 20) + 2 * (8 * 11.3) + 2 * (20 * 11.3) = 320 + 180.8 + 452 = 952.8 square inches.

Surface area of the rectangular prism:
The rectangular prism has six rectangular faces.

The dimensions of the rectangular prism are (w, x, and y) of 8 inches, 5 inches, and 20 inches, respectively. The surface area of each rectangular face is length * width. Adding the surface areas of the six rectangular faces, we get: 2 * (w * x) + 2 * (w * y) + 2 * (x * y) = 2 * (8 * 5) + 2 * (8 * 20) + 2 * (5 * 20) = 80 + 320 + 200 = 600 square inches.

Total surface area of the exterior faces:
To find the total surface area of the exterior faces, we add the surface areas of the triangular prism and the rectangular prism: 50 + 952.8 + 600 = 1,602.8 square inches.

Therefore, the total surface area of the exterior faces of the figure is approximately 1,602.8 square inches. However, none of the given answer choices match this value. Please recheck the given dimensions or options provided.

The total of the surface area would be 1602.8

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3m = -18 please help!!!

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3m = -18

please help!!!