Riley is testing how quickly sugar water freezes. He adds sugar water to one ice tray and plain water to another ice tray. He places each tray in the freezer and records the time when each one starts to freeze. What is the treatment in this experiment?

QUESTION POSTED AT 18/01/2020 - 06:44 AM

Answered by admin AT 18/01/2020 - 06:44 AM

Answer:

The treatment is the sugar that is added to the water.

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Related questions

HELP PLEASE? Leticia invests $200 at 5% interest. If y represents the amount of money after x time periods, which describes the graph of the exponential function relating time and money? The initial value of the graph is 200. The graph increases by a factor of 1.05 per 1 unit increase in time. The initial value of the graph is 200. The graph increases by a factor of 5 per 1 unit increase in time. The initial value of the graph is 500. The graph increases by a factor of 2 per 1 unit increase in time. The initial value of the graph is 500. The graph increases by a factor of 1.02 per 1 unit increase in time.

I know that just the answer is not enough. You need to understand why and how. So I will explaing the steps.

First you need to state the equation that represents the function.

Investment is $200 and interest rate is 5%, y is the amount of money after x periods.

Note that after 1 period the amount of money is 200 plus 5% interest, which is 200 + 5%(200) = 200 (1 +5%) = 200 (1 + 0.05) = 200 (1.05)

After 2 periods the amount is 200(1.05)*(1.05) = 200 (1.05)^2

After 3 periods the amount is 200 (1.05)^3

And now you can deduce that after x periods y = 200 (1.05)^x

You can then analyze the function to predict the shape and critical points of the graph.

The answers are based in the initial value and the increasing factor.

The initial value is when x = 0, which yields to y = 200 (1.05)^0 = 200*1 = 200

And the increasing factor is 1.05 because any value is the previos one times 1.05.

Then the answer is the first option. The initial value is 200 and the graph increases by a factor of 1.05 per 1 unit increase in time. 

ANSWERED AT 21/02/2020 - 11:37 AM


QUESTION POSTED AT 21/02/2020 - 11:37 AM

How much must he add to his account if he wants to have 20 weeks worth of tickets in his account?

240 / 15 = 16 weeks 

(15 * 20) - 5 = ?

295

ANSWERED AT 20/02/2020 - 11:17 PM


QUESTION POSTED AT 20/02/2020 - 11:17 PM

How many times does 9 go into 777?

777÷9=86.3 recurring

ANSWERED AT 20/02/2020 - 11:16 PM


QUESTION POSTED AT 20/02/2020 - 11:16 PM

How many times does 4 go into 85??

4 goes into 85, 21.25 times
4 x 21 = 84
4 x .25 = 1
84 + 1 = 85

ANSWERED AT 20/02/2020 - 11:16 PM


QUESTION POSTED AT 20/02/2020 - 11:16 PM

What is 8 less than the product of 13 times a number x is less than or equal to -32?

8 less tha means 8 mins
product of 13 an a number x is 13x

less than or equal to -32


-8+13x≤-32
add 8 to both sides
13x≤-24
divide both sides by 13
x≤-24/13

ANSWERED AT 20/02/2020 - 11:09 PM


QUESTION POSTED AT 20/02/2020 - 11:09 PM

What is 5.82 times 13?

75.66 would be your answer

ANSWERED AT 20/02/2020 - 11:09 PM


QUESTION POSTED AT 20/02/2020 - 11:09 PM

Ill give a tip please explain the steps Use this table as a reference for your interest rate percentages. Secured Unsecured Credit APR (%) APR (%) Excellent 4.80 5.25 Good 5.15 5.65 Average 5.85 6.20 Fair 7.00 7.65 Poor 8.20 9.15 8. You (or your parents) purchase a new car for $19,725.00 plus 4.75% sales tax. The down payment is $2,175.00 and you (or your parents) have an average credit rating. How much interest is accrued after the first month? (2 points) 9. You (or your parents) purchase a used car for $15,867.00 plus 5.25% sales tax. The down payment is 10% of the total cost and you (or your parents) have an excellent credit rating. What is your principal balance at the start of the loan? (2 points) 10. You (or your parents) are debating about whether to buy a new car for $19,072.00 or a used car for $15,635.00. Sales tax is 4.5%. You (or your parents) plan to make a down payment of $1,200.00 and your credit rating is fair. What is the difference in interest accrued by the end of the first month? (

Divide the APR by 360 days and multiply it by 30 days to get the monthly interest. Each loan is usually secured by the car you bought. So we will use the secured APR.

8. Average rating secured apr: 5.85% divide by 360 multiply by 30:  0.4875% monthly rate
Cost of car: 19,725 ; sales tax: 4.75% ; down payment: 2,175

19,725 x 1.0475 =  20,661.94 - 2,175 = 18,486.94 loan amount
18,486.94 x 0.4875% = 90.12 accrued interest for the 1st month.

9. Excellent rating secured apr: 4.80% divide by 360 multiply by 30: 0.40% monthly rate
Cost of car: 15,867 ; sales tax: 5.25% ; down payment: 10% of total cost

15,867 x 1.0525 =  16,700.02 x 90% = 15,030.02 the principal balance at the start of the loan.

10. Fair rating secured apr: 7% divide by 360 multiply by 30: 0.5833% monthly rate
Cost of new car: 19,072 ; sales tax: 4.5% ; down payment: 1,200
Cost of used car: 15,365; sales tax: 4.5% ; down payment: 1,200

19,072 x 1.045 = 19,930.24 - 1,200 = 18,730.24
18,730.24 x 0.5833% = 109.25 accrued interest

15,365 x 1.045 = 16,056.43 - 1,200 = 14,856.43
14,856.43 x 0.5833% = 86.66 accrued interest

109.25 - 86.66 = 22.59 is the difference in interest accrued by the end of the first month.

ANSWERED AT 20/02/2020 - 11:06 PM


QUESTION POSTED AT 20/02/2020 - 11:06 PM

Mr. vanders tie costs 3 times as much as mr. bentley's tie. together they spent $128. what were the prices of each of their ties?

I'm not completely sure but I think Mr. Bentleys tie costs $32 and Mr. Valders tie costs $96.

ANSWERED AT 20/02/2020 - 11:03 PM


QUESTION POSTED AT 20/02/2020 - 11:03 PM

A worm moves forward 3/8 of an inch every five minutes for one hour 25 minutes. how far does the worm move in this time

1 hour and 25 minutes ~ 75 minutes. Divide: 75 / 5 = 15.
Multiply the numerator by 15. 15 x 3 = 45.
Now divide the denominator: 45/8 = 5 and a remainder of 5.

The answer is 5 5/8 inches.

ANSWERED AT 20/02/2020 - 11:01 PM


QUESTION POSTED AT 20/02/2020 - 11:01 PM

Would it make sense to add more points to the graph from x=0 to x=10? Would it make sense to connect the points with a line? Explain.

It would make sense to add more points to the graph from x=0 to x=10 to see the points accurately. It would also make sense to connect the points with a line to see where the line goes.

ANSWERED AT 20/02/2020 - 11:00 PM


QUESTION POSTED AT 20/02/2020 - 11:00 PM

Six times a number decreased by 5 is the same as 4 times the number increased by 9. What is the number?

6x-5=4x+9
6x=4x+14
2x=14
x=7

ANSWERED AT 20/02/2020 - 10:52 PM


QUESTION POSTED AT 20/02/2020 - 10:52 PM

How do you find speeds if you do not know the distance, but only the time

By using this example you be able to do it

ANSWERED AT 20/02/2020 - 10:51 PM


QUESTION POSTED AT 20/02/2020 - 10:51 PM

I am stuck!! Help me!! I have a test tomorrow‼️‼️‼️‼️‼️

X and Y both equal 1

ANSWERED AT 20/02/2020 - 10:49 PM


QUESTION POSTED AT 20/02/2020 - 10:49 PM

I am stuck!! Help me!! I have a test tomorrow‼️‼️‼️‼️‼️

Do you need to graph this?

ANSWERED AT 20/02/2020 - 10:49 PM


QUESTION POSTED AT 20/02/2020 - 10:49 PM

Eya is 5 years younger than 3 times bills age. If eya is 28 years old, how old is bill? Write and solve an equation to answer the question

Eya is 28 years old, so if she is 5 years younger than 3 times Bill's age, she is 79.

ANSWERED AT 20/02/2020 - 10:39 PM


QUESTION POSTED AT 20/02/2020 - 10:39 PM

Mercedes saves $50 each month. Ken saves $40 each month, and he started at $100. After how many months will they have the same amount saved?

For them to save the same amount of money, they would have to save for 10 months . They would both have $500.

ANSWERED AT 20/02/2020 - 10:35 PM


QUESTION POSTED AT 20/02/2020 - 10:35 PM

How do I estimate the time and how do I graph it

My estimation will 3.5 second. You can plug this equation to a calculator and you will find the answer yourself; 16t^2+196=0

ANSWERED AT 20/02/2020 - 10:34 PM


QUESTION POSTED AT 20/02/2020 - 10:34 PM

What is times 4 time 93

  1
  93
x  4
-------
372

The answer is 372
  hope this helps!


ANSWERED AT 20/02/2020 - 10:33 PM


QUESTION POSTED AT 20/02/2020 - 10:33 PM

84 times at bat; batting average is 0.250

The answer is 21 because 0.250×84=21

ANSWERED AT 20/02/2020 - 10:31 PM


QUESTION POSTED AT 20/02/2020 - 10:31 PM

An angle measures 12 degrees less than three times it's supplement. Find the measure of the angle.

First, please look up "supplementary angles."  Two supplementary angles add up to ... what?

Represent the angles algebraically.  Let the smaller angle be x and the larger angle by y.

How would you express "12 degrees less than three times its supplement?"

ANSWERED AT 20/02/2020 - 10:25 PM


QUESTION POSTED AT 20/02/2020 - 10:25 PM

The bottom of a ladder must be placed 5 feet from a buiding. the ladde is 14 feet long. how far above the ground does the ladder touch the wall?

I have no idea if im just dumb or what but wouldn't that just be 14 feet?

it asked how far above the ground it would have to touch but it also says that it is 14 feet long sooooo......?

ANSWERED AT 20/02/2020 - 10:22 PM


QUESTION POSTED AT 20/02/2020 - 10:22 PM