Mathematics Middle School

A student mixes two substances in a large beaker. After two hours, the student sees that the substances have separated again.

These substances MOST LIKELY differ in their —

A Student Mixes Two Substances In A Large Beaker. After Two Hours, The Student Sees That The Substances

Answers

Answer 1

Answer:

Densities

Step-by-step explanation:

I am really not sure

Answer 2

Answer:

densities

Step-by-step explanation:

oil and water separate because of their differences in density

Related Questions

y - 18.7 = 25.9 .............

Answers

You add 18.7 to both sides, so Y is equal to 44.6

Answer:

y = 44.6

Step-by-step explanation:

25+ 18.7 = 44.6

44.6 - 18.7 = 25.9

y = 44.6

On a cold winter night, it snowed all night long. The next morning, you shoveled 1/5 of the driveway in 2/5 of an hour. How many hours will it take to shovel the driveway?

Answers

Answer:

10/5 of an hour. (☞ﾟヮﾟ)☞  also can be written as 2 hours

Step-by-step explanation:

Shoveling 1/5 of the driveway = 2/5 hours

Shoveling the entire driveway (5/5) would take 2/5 (the time it takes to shovel 1/5) times/multiplied by 5 (5/5 is the entire driveway)

2x5 is 10, so it would take 10/5 hours, which can be reduced to 2/1 or 2 hours to shovel the entire driveway.

Which of the following pairs of numbers has a GCF of 1?

A. 30 and 70
B. 12 and 30
C. 16 and 21
D. 24 and 44

Answers

Answer:

Step-by-step explanation:

Must be 16 and 21 because we can see

30 and 70 has 10 as factor

24 and 44 has 2 as factor

12 and 30 has 2 as factor and all those factors are greater than one

Answer:

16 and 21

Step-by-step explanation:

we can see

30 and 70 has 10 as factor

24 and 44 has 2 as factor

12 and 30 has 2 as factor and all those factors are greater than one

Determine the x- and y- intercepts of the graph of

y = - 1/2 x - 4

Answers

x = -8
y = 2

ksnckcmmcmcvkdmel mskfkkckdmc
X equals -2 djdjrjdnfndndnrnejdjddjjddj

Help with 8th-grade middle school math SHOW WORK

Answers

Answer:

40

Step-by-step explanation:

Tristan weighs 120 pounds and is gaining ten pounds each month. Mike weighs 150 pounds and is gaining 4 pounds each month. How many months, m, will it take for Tristan to weigh the same as Mike?

Answers

Answer:

5 months

Step-by-step explanation:

tristin is already 120 pounds

mike is already 150 pounds

tristin is gaining more pounds per month than mike

tristin                                                            mike

Month 1 = 130                                            154

Month 2 = 140                                           158

month 3 = 150                                            162

month 4 = 160                                             166

month 5 = 170                                              170

Answer:

Tristan 240

Step-by-step explanation:

Mike 198

What is the quotient?



1065 ÷ 33



Enter your answer as a mixed number in simplest form in the box

Answers

Answer:

its 32 or 32.2727272727

Step-by-step explanation:

kkkkkkkkkkkkk

Answer: 32 3/11

Divide the numbers, with a remainder, using long devision.

Describe why alternate interior angles are not always congruent?

Answers

Answer: Angles on opposite sides of a transversal, but inside the lines it intersects.

Step-by-step explanation:

I’m not 1000% sure if the answer but hey you should do your own work bud

Name the other angles that are congruent to <1. There are three solutions to this question. Only write the number of the congruent angles.

Group of answer choices
4

5

8

Answers

The answer is 4 I believe so
8 because that’s the answer.

Grace paid $9.25 for 2.8 pounds of pretzels. About how much did she pay for a pound of pretzels?
A.$2.00
B. $3.00
C. $4.50
D. $5.00

Answers

B. $3.00

Because if you round 2.8 to 3 and round 9.25 and get 9 and divide 9 by 3 you get 3 so it’s closest to B.

Answer:

It should be B.

Step-by-step explanation:

You have to divide 9.25/2.8 and you'll get $3.30. I didn't see that answer, so I rounded and got $3.00.

Solve the equation using inverse operations. Check your solutions. In your final answer, include all of your work.
-x^2 = -36

Answers

Answer:I think it is 18

Step-by-step explanation:

Beacause 2x18+36

The answer is 6, divide both sides by -1 to get x^2 on the left and 36 on the right, x=6

evaluate the expression when: A=2, B=1, C=4
A+6/CB

Answers

Answer:

Imma rewrite the question as: 2+6/41

2+6=8

i think since the letters were next to each other u multiply?? Is so...:

4x1=4

8+4=12

=12

but if u add the letters next to eachother....

2+6=8

4+1=5

8+5=13

=13

or if u use “41” as a whole number and add it in..:

2+6=8

8+41=49

=49

Step-by-step explanation:

2+6/4x1
8/4
4 into 8 =2
Answer is 2

Can someone please help me.

Answers

Question 2 is 855.
Question 3 is 96,000
Question 4 is 289 billion
Question 5 is 9,011
Question 6 is 632
2: 855
3: 96,000
4: 289 billion
5: 9011

Solve for X
X=..........................

Answers

Answer:

(3x -5)°+ (2x- 15)°=180°[sum of co- Interrior angles of a triangle is 180°]

or, 3x- 5 + 2x - 15=180°

or,5x - 20 = 180°

or, 5x = 180°+20

or, x = 200÷ 5

•°•x = 40°

Answer:

X = 40

Step-by-step explanation:

3x + 2x -5 -15 = 180

5x + -20 = 180

then u add 20 on both sides

5x + 0 = 200

ya the 0 is not necessary but I was showing u add 20 on both sides lol

then u divide 5 on both sides to get the x by itself

x = 40

Hope this helps dude ^-^

Which of the following expressions represents the perimeter, in feet, of the rectangle?


Question 3 options:


6n + 5



13n + 10



10.5n + 10



20n + 5

Answers

Answer:20n+5

Step-by-step explanation:

20n+5 thats the correct answer

a meteorite found in the united states weigh 7/10 as much as one found in mongolia. the meteorite found in monoglia weighs 22 tons. how much does the one in the united states weigh?

Answers

I only wrote this to get points

Answer:

31.42

Step-by-step explanation:

Help please and ill ask more questions to see who will get the brainiest :)

Answers

Answer:

A: How much money did you save? $1.92

B: What price did you pay? $3.58

Answer:

a=$1.93 b=$3.57

Step-by-step explanation:

If 1x=2 then what does2x=?

Answers

Answer: 4

Step-by-step explanation:

X is established as 2 with the first equation

Answer:

4 I believe

Step-by-step explanation:

if 1x=2

  2x=4

  3x=6

multiply by 2 each time

classify the number: -23

Answers

wouldn’t the answer be 23?
It would be an integer

Find the measures of two supplementary angles if their measures are in the given ratio.
3:7

Answers

Two supplementary angles are in the ratio 3:7. Find the angles ?

Let the two angles be 3x and 7x.

Supplementary angles add up to 180 degrees.

Therefore:

3x + 7x = 180

10x = 180

x = 18

3x = 3 * 18 = 54

7x = 7 * 18 = 126

Measure of angles are 54° and 126°.

What is Supplementary angle?

Sum of two or more angles are 180 degrees then, the angles are called supplementary angle.

Given that;

The ratio of angles are 3 : 7.

Now,

Let the two angles be 3x and 7x.

Since, Supplementary angles are add up to 180 degrees.

So,

3x + 7x = 180

10x = 180

x = 18

So, First angle of supplemental angles = 3x

                                                           = 3 × 18  

                                                           = 54

And, Second angle of supplemental angles = 7x

                                                                   = 7 × 18

                                                                   = 126

Thus, Measure of angles are 54° and 126°.

Learn more about the supplementary angle visit:

https://brainly.com/question/17706490

#SPJ2

here are some numbers 2 9 14 36 40 what number is a multiple of 12 which number is a prime number which number is a factor of 64

Answers

Answer:  36 is a multiple of 12

2 is a prime number.

2 is a factor of 64

Step-by-step explanation:

12 × 3 =36, so 12 is one of the factors.

2 is the only even prime number. All other even numbers are multiples of 2.

9 is not a prime number. 3 × 3 = 9

2 is a factor of 64.  2 × 32 = 64  None of the other numbers given can divide evenly into 64, so they are not factors of 64.

Answer:36 is a multiple of 12

Step-by-step explanation:

please just help me soon!

Answers

In this question, the algebra equation is a[3(5b - c)]. Since a = 1.6, b = 2, and c = 5, we would replace the equation into 1.6[3((5)(2) - 5)).

With this equation, the answer will be 24
Answer: 24

Step by Step Explanation:
Since we know what our variables are, we will plug in 1.6 for a, 2 for b, and 5 for c.

1.6[3(5(2) - 5)]

Now we solve and work from the inside out!

1.6[3(10 - 5)]

1.6[3(5)]

1.6 • 15

= 24

So our answer is 24!

Hope this helped! :3

Write the standard numeral for 160 thousand four.

Answers

Answer:

160,004

Step-by-step explanation:

Find: Standard numeral for 160 thousand four

Standard Numeral: The basic form of the number.

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

For example:

Fourty-eight= 48

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

In this case, we are finding:

160 thousand four:

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

1 thousand= 1,000

160 thousand= 160 times of that thousand= 160*1,000= 160,000

160 thousand four= 160,000 plus the extra 4=

160,000+4=

160,004

In conclusion, the standard numeral for 160 thousand  four is:

160,004

The Answer Is 160,004

Kyle drives 330 miles on 15 gallons of gas. How many miles per gallon did Kyle get?

Answers

Answer:

the answer would be 22 miles per gallon

Step-by-step explanation:

if we solve it as 330/15 since Kyle drove 330 miles on 15 gallons, our answer would end up being 22 miles per gallon

Answer is 22 miles per gallon.

Which answer choice represents an equivalent number sentence that uses the associative property to rewrite "(5 + 2) + -6"?
A. 5 + 2 + 6
B. 5 + [2 + (-6)]
C. 5 + (-4)
D. 1

Answers

The answer for this question is letter B
The answer of this question will be A

what is the relationship between ratios?
5/8 and 8/10
the ratios are____
(A). proportional
(B). not proportional

Answers

A is the correct answer!

Answer:

These ratio's are proportional

Step-by-step explanation:

if you use 5x2=10

if you use 8x1=8

What is 1.000000000+1.000000000

Answers

Answer:

2

Step-by-step explanation:

it is bascially 1+1

Answer:

2

Step-by-step explanation:

1+1=2

R CORRECT. srry it wouldn't lemme type in the comment. welp last one. what i the area of the trapezoid

Answers

Answer:

1122 cm

Step-by-step explanation:

Answer:

112

Step-by-step explanation:

3x -30 +4x = 7x + 24

Please answer quickly!! will give brainliest!

Answers

Answer:

There are no solutions.

Step-by-step explanation:

I’m sorry there aren’t any solutions

Kristen paid $39 for 60 cans of corn. How much did she pay per can?

Answers

Answer:

.60 per can

Step-by-step explanation:

39 dollars divided by 60 cans

The ratio of the amount of money that Kristen paid to the number of cans gives the amount per can thus it will be $0.6 per can.

What are the ratio and proportion?

The ratio is the division of the two numbers.

For example, a/b, where a will be the numerator and b will be the denominator.

Proportion is the relation of a variable with another. It could be direct or inverse.

As per the given,

Kristen paid $39 for 60 cans of corn.

Ratio of the amount to the number of cans,

39/60 = $0.6 per can

Hence "The ratio of the amount of money that Kristen paid to the number of cans gives the amount per can thus it will be $0.6 per can".

For more information about ratios and proportions,

brainly.com/question/26974513

#SPJ2

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