7) Why must the amount of hot chocolate (50 ml) be the same in both cups for the experiment to work?

Answers

Answer 1

Because the amount of hot chocolate is an independent variable and needs to stay consistent throughout the experiment


Related Questions

Determine the value of x.

No links please!

Answers

Answer:

The answer is D.

Step-by-step explanation:

Answer:

The choice D)

[tex]2 \sqrt{2} [/tex]

Step-by-step explanation:

Sin = Opposite/ hypotenuse

[tex] \sin(45) = \frac{x}{4} \\ \\ \frac{1}{ \sqrt{2} } = \frac{x}{4} \\ \\ \sqrt{2} x = 4 \\ \\ x = \frac{4}{ \sqrt{2} } \\ \\ x = \frac{4}{ \sqrt{2} } \times \frac{ \sqrt{2} }{ \sqrt{2} } \\ \\ x = \frac{4 \sqrt{2} }{2} = 2 \sqrt{2} \\ \\ \\ x = 2\sqrt{2} [/tex]

I hope I helped you^_^

Simplify ^75 select the correct answer

Answers

Answer:

to simplify the square root of 75, first I recognize that the perfect square 25 goes into it. So 75 = 25 x 3. Therefore the square root of 75 equals the square root of 25 times the square root of 3. And that means just 5 times the square root of 3.

Step-by-step explanation:

The square root of √75 is 5√3.

What is Radical?

The √ symbol that is used to denote square root or nth roots. Radical Expression - A radical expression is an expression containing a square root.

A radical notation is an expression that incorporates a root, such as the square or cube root.

Given:

We have to find the square root of 75.

So, we have to factories 75 as

= 25 x 3

and, the square root of 25 is 5.

Then, √75 = √( 5 x 5 x 3)

                  = 5√3.

Learn more about Radical here:

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i ned help with this question

Answers

Answer:

It should be ben because if it is ben then you would divide 4  1/2 into 1/4

Step-by-step explanation:

he will have 18 peices in total(But thats not what the question is asking)

The answe is Ben/B

Answer:

ben had a 4 1/2 foot-long sandwhich. he cuts the sandwich into a 1/4 foot-long pieces. how many pieces of sandwich does Ben have?

Step-by-step explanation:

this one is correct because the other 3 aren't for division.

A recommended portion of Lee's muesli weighs 75g.
Lee's muesli contains 71% wheat and oats, 26.5% fruit and 2.5% nuts.
a What is the mass of wheat and oats in one portion of Lee's muesli?
b What is the mass of nuts in one serving of Lee's muesli?

Answers

Answer:

Total weigh = 75g

a) so the mass of wheat and oats one protion = 75*(71/100) g = 53.25g

b) the mass of nuts in one serving = 75*(2.5/100) g = 1.875g

Step-by-step explanation:

Here I think mass = weigh, as it's not physics.

his friends eat 6/10 what fraction are left

Answers

Answer:

3/5

Step-by-step explanation:

4/10 are left. We can reduce it and get 2/5.

Hope it helps you!

[tex]JoyfulLass[/tex]

[tex]Genius[/tex]

[tex]IAmHereToHelpYou[/tex]

Y = 11x - 7, what is y when x = 4? 1 Write the equation Y = x - 7 X 7​

Answers

Answer:

44-7=37

y=4-7x7....y=4-49....y=-45

I will brainless who can answer this all pleaseeeeej​

Answers

17) D

19) B

20) C

21) D

These are the answers

5. Which unit is used to measure volume?
Hours
Feet
Gallons
Tons

Answers

Gallons. I’m pretty sure

what can 34 be divided by

Answers

Answer:

1, 2, 17, 34

Step-by-step explanation:

1 x 34 = 34

2 x 17 = 34

Answer:

Well 34 can be divided by anything...

Step-by-step explanation:

34/1 = 34

34/2 = 17

34/3 = 11.3333

34/4 = 8.5

34/5 = 6.8

34/6 = 5.6666

34/7 = 4.857...

34/8 = 4.25

34/9 = 3.7777

34/10 = 3.4

Hope this help!

What is the missing value?

Answers

Answer:

17 .........is the answer

Answer:

the missing value is 17.......

An engine in a model rocket can cause the rocket to accelerate from 0 m/s to 238 m/s in 1.2 seconds. What is the acceleration of the rocket?

Answers

Answer:

Step-by-step explanation:

acceleration = change of velocity / time

= 238/1.2

= 198.3 m/s/s.



If £2000 is placed into a bank account that pays 3% compound interest per year,
how much will be in the account after 2 years?
60%

Answers

Answer:

There would be 2,120 dollars in that account

Answer:

Step-by-step explanation:

A=P(1 - r/n)^nt

A = 5,000 (1 - 0.03/1)^(1)12)

A = 5,000 (1 - 0.03)^2

A = 5,000 (0.9)^2

A = $5,314.06

make q the subject of the formula 5(q+p)/2 = 3 + 4p

Answers

Answer:

q = [tex]\frac{6+3p}{5}[/tex]

Step-by-step explanation:

[tex]\frac{5(q+p)}{2}[/tex] = 3 + 4p ( multiply through by 2 to clear the fraction )

5(p + q) = 6 + 8p ← distribute parenthesis on left side )

5p + 5q = 6 + 8p ( subtract 5p from both sides )

5q = 6 + 3p ( divide both sides by 5 )

q = [tex]\frac{6+3p}{5}[/tex]

In need help with this thx

Answers

Answer: the answer is 21√10

Step-by-step explanation:

√ 3 ( 7 √ 3 )

√3 ×12.12435565

21

which expression are equivalent to 4.53E-4 Select all that apply

Answers

Answer:

4.53

Step-by-step explanation:

hope you get it right

What is the y-intercept of a line that has a slope of 3 and passes through point (-1, -7)?
O-10
O4
O 3
O 7

Answers

It must be -4, but the second choice is a positive 4, I am not sure if you typed the choices wrongly..

The residence of a city voted on whether to raise property taxes the ratio of yes votes to no votes was 3 to 2 if there were 4440 total votes how many yes votes were there

Answers

Answer:

Y / N = 3 / 2

N + Y = 4440

Since Y = 3/2 N

3/2 N + N = 4440

5/2 N = 4440

N = 8880 / 5 = 1776

Y = 1776 * 3 / 2 = 2664

1776 + 2664 = 4440

2664  / 1776 = 3 / 2

Find the output, h, when the input, x, is –18.
h=17+x/6
h=

Answers

Answer:

14

Step-by-step explanation:

h= 17 + -18/6

h= 17 + -3

h = 14

2x - 5 = 2x + 8 solving algebraically and graphically

Answers

I solved it in a algebraically way. Have a good day, and hopefully I did it right.

Please can you help me​

Answers

Please check the attached picture

solve for X.

-3 + 6 = 2x - 24

a: -30
b: -6
c: 6
d: 30

Answers

Answer:

The answer should be 13.5. but it was not given.

Step-by-step explanation:

[tex] - 3 + 6 = 2x - 24 \\ 3 = 2x - 24 \\ 24 + 3 = 2x \\ 27 = 3x \\ \frac{27}{3} = x \\ 13.5 = x \\ [/tex]

Error Analysis The solution shown for the equation is
What is the error?
-7(2-1) - 21
-14-7-21
- 7 = 35
r-5
The solution is (Type the value of r)

Answers

The error is when you multiply -7 by -1 it is 7 not -7 so,
-14+7-21
-7-21
-28
Also where did r come from you asking 2 different questions

The library of congress in Washington DC is considered the larger library in the world. They often receive boxes of books to be added to their collection. Since books can be quite heavy, they aren’t shipped in big boxes. If, on average each box contains about 8 books how many books are received by the library in 6 boxes, 10 boxes or n boxes

Answers

Answer:

6 boxes have 48 books

10 boxes have 80 books

n boxes have n×8 books

Step-by-step explanation:

if one box has 8 books then n no.of boxes will have n × 8 no.of books

The value of y is directly proportional to the value of x.

If y = 10 when x = 5, what is the value of the following.

a) find the value of y when x is equal to 4.

b) find the value of x when y is equal to 6

Answers

Answer:

a) find the value of y when x is equal to 4.

Step-by-step explanation:

Answer:

a) the value of y will be x=5 - 4= 1

therefore y=1

b) the value of x will be y= 10 - 6= 4

therefore x=4

tell whether the following sequence is geometric or not. If geometric find r

hi can someone please answer my question i really need the complete step-by-step solution. thank you ❤️​

Answers

Answer:

yesr = 1/2

Step-by-step explanation:

We can observe each term is twice as less than the previous term.

This is the indication the sequence is geometric and the common ratio is:

r = 1/2

Graph the image of the given under a dilation with a scale factor of 3 and center of dilation (0, 0)

To use the Polygon tool plot each vertex of the polygon To close the polygonselect the first point as your last point

Answers

I think this is right, I took the points and multiplied the coordinates by 3. Hope this helps

How to solve 35 divided 10?​

Answers

Answer:

Here we will show you step-by-step with detailed explanation how to calculate 35 divided by 10 using long division.

Before you continue, note that in the problem 35 divided by 10, the numbers are defined as follows:

35 = dividend

10 = divisor

Step-by-step explanation:

ywy

The solution to the expression 35 divided by 10 is 3.5

Given data:

The first number is represented as p.

The value of p = 35

The second number is represented as q.

The value of q = 10

Now, the expression is 35 divided by 10

So, [tex]A=\frac{p}{q}[/tex]

To solve 35 divided by 10, yu perform the division operation as follows:

Divide 35 by 10:

35 ÷ 10 = 3.5

Hence, 35 divided by 10 equals 3.5.

To learn more about equations, refer:

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What did the acorn say when it grew up?

Answers

Geometry

that was a good one

billy started a paper route with 21 customers. if he adds 3 new customers every week, how many weeks will it take to double the number of customers on his route.

Answers

Week 1 - 21
Week 2 - 24
W3 - 27
W4 - 30
W5 - 33
W6 - 36
W7-39
W8-42

It will take him 8 weeks

Answer:

It will take billy SEVEN weeks

Step-by-step explanation:

It will take Billy seven weeks because 3 x 7 = 21

A new electric car uses 7.3% of its battery to drive 6.4 miles, at that rate how many miles can you drive using 100% of the battery charge?

Answers

Answer:

83.2 miles

Step-by-step explanation:

what i had to do was multiply 7.3 by 13 and that was 94.9 that was as close as i could get it to 100 so i then multipled 6.4 by 13 and got 83,2 miles

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