the melting point of ice + common salt =​

Answers

Answer 1

Answer:

Step-by-step explanation:

Ice forms when the temperature of water reaches 32 degrees Fahrenheit (0 degrees Celsius). When you add salt, that temperature drops: A 10-percent salt solution freezes at 20 °F (-6 °C), and a 20-percent solution freezes at 2 °F (-16 °C). On a roadway, this means that if you sprinkle salt on the ice, you can melt it.

Answer 2
Ice forms when temperatures are increased meaning it’ll be by 20 degrees

Related Questions

help I don't understand​

Answers

Answer:

Sequence: Reflection over the y-axis, then 1 to the right and 2 down to get the triangle ABC to A'B'C.

Step-by-step explanation:

Have a nice day!

Ernest's dining room is 19 feet wide and 21 feet long. Ernest wants to install wooden trim around the
top of the room. The trim costs $0.69 per foot. How much will it cost Ernest to buy enough trim?

Answers

Answer:

$55.20

Step-by-step explanation:

19x2=38

21x2=42

42+38=80

80x.69=55.2

Find the remainder when p6–p4–p2–1is divided by p -1
pls fast

Answers

remainder is negative 2

A normal distribution of 10 and a standard of 1. What is the probability of selecting a number that is at most 9?

Answers

Answer:

0.15866

Step-by-step explanation:

The term at most 9 means = less than or equal to 9

This represented as x ≤ 9

We solve using the z score formula

z = (x-μ)/σ, where

x is the raw score = ≤ 9

μ is the population mean = 10

σ is the population standard deviation = 1

z = 9 - 10/1

z = -1

Probability value from Z-Table:

P(x ≤ 9) = 0.15866

Therefore, the probability of selecting a number that is at most 9 is 0.15866

A trapezoid has a height of 6 inches, an area of 120 square inches, and one base measuring 13 inches. Find the length of the other base. ​

Answers

Answer:

27

Step-by-step explanation:

Givens

b1 = 13

b2 = ?

h = 6

Area = 120

Formula

Area = (b1 + b2) * h/2         Multiply by 2

2Area = (b1 + b2)*h           Divide by h

2Area/h = b1 + b2              Subtract b1 from both sides

2Area/h - b1 = b2

Solution

2*120 / 6 - 13 = b2

40 - 13 = b2

b2 = 27

It is always handy to solve an equation in the form that finds the unknown on one side. It makes the solution much easier.

Jamal works at the recreation center 40 hours a week during the school year. He earns $8.75 an hour for 8 hours a day. Bi-weekly, he works 80 hours. Calculate his bi-weekly taxes below.

Answers

Answer:

40x8.75=$350, 80-40=40x8=$320 350+320=$670

Answer:

670

Step-by-step explanation:

Use the value 3.14 for pi, and do not round your answers. Be sure to include the correct units in your answers.

Answers

Circumference: 2 * pi * r
Given pi = 3.14, r = 5
2 * 3.14 * 5 = 31.4
The circumference is 31.4 ft

Area: pi * r^2
3.14 * 5^2 = 3.14 * 25
3.14 * 25 = 78.5
The area is 78.5 ft^2

HELP MEHHHHHHHHH. thanks.

Answers

Answer:A

The mean is the average of all numbers, in this example it's to national averages which will have many numbers.

The Answer is A .....

how many whole numbers are between 0 and 1999

Answers

there are 2000 whole number

please answer this I will give brainliest and you get 20 points

Answers

JUBILANT

Step-by-step explanation:

Answer:

Jublinant

Step-by-step explanation:

What is x to the nearest tenth?

Answers

Answer:

A. 37.5

Step-by-step explanation:

hELP AGANI PLZ
At a school, the ratio of boys to girls is 4 : 5. the school has 900 students. How many girls are there?

Answers

Answer:

180

Step-by-step explanation:

The answer is 180 because:

[tex]5*180=900[/tex]

Solve for X.

Then, Solve for Y.

Answers

Step-by-step explanation:

Refer to attachment.

Hope it helps :D

First solved for x, then for y [tex].[/tex]

Jason just got tired for a new job and will make $80,000 in his first year. Jason was
told that he can expect to get raises of $5,000 every year going forward. How much
money in salary would Jason make in his 23rd year working at this job?

Answers

Answer:

$110,080

Step-by-step explanation:

This is an arithmetic sequence because each new term is obtained by adding $5000 to the preivous term.

The general formula for such an arithmetic series is

a(n) = $80,000 + ($5,000)(n - 1)

and so in his 23rd year Jason would make

a(23) = $80,000 + ($5,000)(23 - 1), or

$110,080

Answer:

$110,080 is the answer

Write 2/8 in simplified form

Answers

Answer:

1/4

Step-by-step explanation:

because you basically divided by two on

Answer:

1/4 is the answer mark me brainliest

Solve for a.

a² = 16

Enter your answer in the box.

a = ​ ± =

Answers

Answer: 4

Step-by-step explanation: take the square root of 16, because the opposite of squaring a number is finding the square root, and you get a=4

State the slope and y-intercept for the graph of the equation -8x + y = -12.

Show your work!!

Answers

Answer:

Slope is 8 and Y-Intercept is -12

Step-by-step explanation:

Move the -8x over to the right side by adding it, You are now at

y=-12+8x

Move these around and you are now at

Y=8x-12

Answer:

Step-by-step explanation:

Remark

y must have a numerical coefficient of 1. This equation does. If it does not, then you must divide through by whatever is in front of the y.To read the slope, you must have x and its coefficient on opposite sides of the equal sign. So you get y = 8x - 12 when you add 8x to both sidesNext, the y intercept is found when x = 0y = 8x - 12y = 8(0) - 12y = - 12The  y intercept is -12 or in point form (0, - 12)

Answer

slope = 8

y intercept = - 12

5 1/2in
10in
6 1/4in

Answers

Answer:

5 1/2in

10in

6 1/4inhhjghtdddyggkkjh

Cesar does the same number of push-ups everyday. On day 7 he had done a total of 35 push-ups. How many push-up does Cesar do each day? If he continues at this rate, how many total push-ups will he have done on day 10?

Answers

Answer:

first question

5 push-ups a day

second question

50 push-ups

Step-by-step explanation:

First, you must divide 35 divided by 7 because if Cesar does the exact same amount of push-ups a day, you can divide the total number of push-ups by how many days. Which gets you your first answer 5.

Then you multiply the number of days by the number of push-ups Cesar does in a day.

10 x 5 = 50

REAL ANSWERS ONLY! 20 points!!

Answers

Answer:

I think the answer is 85.64m

Step-by-step explanation:

any clue how to do this question?

Answers

Answer:

I think that you multiply the 2 numbers by x and b,

Step-by-step explanation:

which if the following is the x-corrdinate of the solution to the system shown below?

x+y=11
x-y=7

(A) x=9
(B) x=2
(C) x= 18
(D) x=14

Answers

the answer is A (x=9)

Answer:

x = 9

hope it helps

I'm soo sad :(

the table below shows the values for the function y=f(x). complete the table for the function y=f(1/5x).

Answers

x y

-4 -4/5

-1 -1/5

0 0

3 3/5

6 6/5

Step-by-step explanation:

So fill in the same numbers for x. then multiply them by 1/5 since the function is 1/5 times x.

chris is 4 1/4 feet tall his mom is 1 1/2 times as tall as chris how tall is chris's mom

Answers

Answer:

6 feet 3 inches

Answer:

6.375 ft tall

Step-by-step explanation:4 1/4x1 1/2=6.375

When the y coordinate is positive, which way do you move on the coordinate plane?

Answers

Answer:

up

Step-by-step explanation:

You would move it up the y-axis

Which expression is equivalent to 10x2y + 25x2?

5x2(2y + 5)
5x2y(5 + 20y)
10xy(x + 15y)
10x2(y + 25)

Answers

the first one 5x2(2y+5)

If x) = 4x2 - 16 were shifted 5 units to the right and 2 down, what would the
new equation be?
O A. h(x) = 4(x - 5)2 + 14
B. h(x) = 4(x + 5)2 - 17
C. h(x) = 4(x-18)2 - 5
D. h(x) = 4(x - 5)2 - 18

Answers

Answer:

D

Step-by-step explanation:

To shift h units to the right, replace x with x - h

To shift h units to the left, replace x with x + h.

To shift k units up, add k to the end of the formula for the function.

To shift k units down, subtract k from the end of the formula.

Example:  [tex]y=x^2[/tex]

[tex]y=(x+2)^2+6[/tex] is [tex]y=x^2[/tex] shifted left 2 units and up 6 units.

Caution: the right/left shifts sometimes look backwards!

X + 8 = -6

need this asap ty

Answers

Answer:

Solution given:

x+8=-6

x=-6-8=-14

Answer:

X = -14

Step-by-step explanation:

Directions: Select all the correct answers.
Yvette needs 5/8 of a teaspoon of salt, 2/3 of a tablespoon of baking soda, and 3/4 of a cup of sugar to bake a cake.

The order of the measurements from least to greatest are 5/8 < 3/4 < 2/3.
The order of the measurements from least to greatest are 5/8 < 2/3 < 3/4.
The numbers 5/8 and 3/4 are terminating decimals while 2/3 is a non-terminating decimal.
The numbers 5/8 and 2/3 are terminating decimals.
The number 5/8 is a terminating decimal while 3/4 and 2/3 are non-terminating decimals.
The number expands to 0.75 while expands to 0.6.
The number 5/8 expands to 0.625 while 3/4 expands to 0.75.
The order of the measurements from least to greatest are 2/3 < 5/8 < 3/4

Answers

Answer:

The order of the measurements from least to greatest are 5/8 < 3/4 < 2/3.

Step-by-step explanation:

Answer:

The numbers 5/8 and 2/3 are terminating decimals.

The order of the measurements from least to greatest are .

2/3<,5/8,<3/4

Step-by-step explanation:

study island

-4 (b + 2) = 20 answer

Answers

(-4b - 8) = 20
-4b = 20 + 8
-4b = 28
b = -7
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