the mass of a grain of sand is about 10 to the power of negative three grams. about how many grains of sand are in the bag of sand?

Answers

Answer 1

We are given : The mass of a grain of sand = [tex]10^{-3} grams.[/tex]

Bag contains = 10 kilograms of sand.

Let us concert 10 kg into grams first.

1 kg = 1000 grams.

10 kg = 10 × 1000 = 10000 grams = 10^4.

Therefore, bag contains 10^4 grams of sand.

Therefore, number of grains of sand are in the bag of sand of 10^4 grams =

The mass of a grain of sand in grams ÷ The mass of a grain of sand.

[tex]\frac{10^4}{10^{-3}}[/tex]

=[tex]10^{4-(-3)}[/tex]

=[tex]10^{4+3}[/tex]

[tex]=10^7  \ grains \ of \ sand.[/tex]

Therefore, [tex]10^7[/tex] grains of sand are in the bag of 10kg sand.


Related Questions


What could you do to describe the following data, showing temperatures for the week? (Check all that apply.)

Mon - 65°
Tues - 67°
Wed - 66°
Thur - 70°
Fri - 72°
Sat - 68°
Sun - 69°


Construct a line graph.
Find the mean, median, mode, and range.
Construct a stem-and-leaf plot.
Survey people about the weather.

Answers

To describe the following data, showing temperatures for the week use the following statistical tools:

Construct a line graph.Find the mean, median, mode, and range.Construct a stem-and-leaf plot.

please help with these two questions!! thank you so much :)

Answers

1) Width=4.7 2) Length=18.4

In a sample of 600 patients, 500 said they were fully satisfied with their treatment plan. If there are 30,000 patients, how many patients can we expect to say they are fully satisfied?In a sample of 600 patients, 500 said they were fully satisfied with their treatment plan. If there are 30,000 patients, how many patients can we expect to say they are fully satisfied?

Answers

Answer: Hence, 25000 patients are fully satisfied with their treatment plan .

Step-by-step explanation:

In a sample of 600 patients , there are 500 patients who were fully satisfied with their treatment plan.

So fraction is given by

[tex]\frac{500}{600}=\frac{5}{6}[/tex]

Now, if we have 30,000 patients ,

then ,the number of patients who were fully satisfied is given by

[tex]\frac{5}{6}\times 30000\\\\=\frac{150000}{6}\\\\=25000[/tex]

Hence, 25000 patients are fully satisfied with their treatment plan .

if 30% of a given number is 24 what is 75% of the number

Answers

First, let's set up an expression.

0.3x = 24

Now, let's solve for x.

0.3x = 24     ⇒ [tex]\frac{0.3x}{0.3}[/tex] =[tex]\frac{24}{0.3}[/tex]

x = 80


To find 75% of x, we have to multiply 80 by 0.75

80*0.75 = 60.


60 is the final answer.


The 75% of the number is 60 and this can be determined by using the unitary method and the given data.

Given :

30% of a given number is 24.

The following steps can be used in order to determine the 75% of the unknown number:

Step 1 - The unitary method can be used in order to determine the 75% of the unknown number.

Step 2 - First determine the unknown number.

Step 3 - If 30% of the unknown number is 24 then the 100% is:

[tex]=\dfrac{100}{30}\times 24[/tex]

= 80

Step 4 - Now, if the 100% is 80 then the 75% is:

[tex]=\dfrac{75}{100}\times 80[/tex]

= 60

For more information, refer to the link given below:

https://brainly.com/question/12116123

In 5 years, a bank account with a 4.5% annual interest rate earned $3,375 as simple interest. What was the principal amount of the account.

Answers

Answer:

$375.00

Step-by-step explanation:


Answer: $15000

Step-by-step explanation:

The formula to calculate the simple interest is given by :-

[tex]S.I.=P\times r\times t[/tex], where P is the principal amount , r is the rate of interest and t is the time period.

Given: Interest amount = $3,375

Rate of interest = 4.5%=0.045

Time period = 5 years

Let P be the principal amount, then we have

[tex]3375=P\times 0.045\times 5\\\\\Rightarrow\ P=\dfrac{3375}{0.045\times 5}=15000[/tex]

Hence, the principal amount of the account was $15000.

A car travels 120 miles in 3 hours how with a constant speed how far will it take to travel 200 miles

Answers

I don't really understand your wording of the question, but this is what I did: I made a key (like in proportions) with the hours on top and the distance as the denominator. I put 3 over 120 and I did the same thing with the 200 miles, but I substituted the constant speed with "x". Then I cross multiplied and ended up with the equation "120x=600". After that, just divide by 120 and get and answer of 5 hours.

A teacher gave a test with 50 questions, each worth the same number of points. Donovan got 39 out of 50 questions right. Maci's score was 10 percentage points higher than Donovan's.

What was Maci's Score? Explain.

How many more questions did Maci answer correctly? Explain.

Explain how you can check your answers for reasonableness.

Answers

39/50= 0.78 times 100= 78

78 is Donovan's score

if maci's score is 10 percentage points higher

78+10=88

x /50 =0.88 times 100= 88

x=44

each question is 2 points:  88-78= 10/2=5

Maci answered 5 questions correctly.

Which temperature is between 12 Celsius and -10 Celsius?

Answers

The difference between 12 Celsius and -10 Celsius is 22 degrees.

There are 20 different, whole number, specific degrees between 12 and -10 Celsius.

In 1990 about 13.8 million students were enrolled in US college. In 2000, about 14.9 million students were projected to be enrolled is US college. Find the average rate of change in the number of students per year. (SOMEONE CAN HELP ME PLEASE)

Answers

In 1990 6934.6733 students is about the average and in 200 7450 is the average.

Final answer:

The average yearly rate of change in US college enrollment from 1990 to 2000 was 110,000 students per year.

Explanation:

To calculate the average rate of change in the number of students enrolled in US colleges per year from 1990 to 2000, we can use the following formula: Average rate of change = (Final value - Initial value) / Number of years. In this case, the initial value (1990 enrollment) is 13.8 million students, and the final value (2000 enrollment) is 14.9 million students. The number of years between 1990 and 2000 is 10 years. So, the calculation would be:

Average rate of change = (14.9 million - 13.8 million) ÷ 10 = 1.1 million ÷ 10 = 0.11 million students per year.

This means that, on average, the number of students enrolled in US colleges increased by 110,000 students per year over the 10-year period from 1990 to 2000.

if f(x) = 2x^2 - 3x + 4, then f(x + 3) is equal to

Answers

f(x + 3) = 2x² + 9x + 13

substitute x = x + 3 into f(x)

f(x + 3) = 2(x + 3)² - 3(x + 3) + 4 = 2(x² + 6x + 9) - 3x - 9 + 4

f(x + 3 ) = 2x² + 12x + 18 - 3x - 9 + 4 = 2x² + 9x + 13



Nancy drove from New York to Boston, a distance of 1144.97 km. She drove with a friend for the first 711.5 km, and then by herself for the remaining distance. How far did Nancy drive by herself? A. 433.47 km B. 333.47 km C. 1855.47 km D. 1856.47 km

PLEASE ANSWER
WILL GIVE BRAINLIEST!!!!!!!!!!!!!!!!!!

Answers

Answer for this one would be option A

What does n equal in this equation? n+4/-2=-9

Answers

So basically you just want to isolate the variable. So you want n on a side all by itself. so first you multiply by -2 to both sides, that will leave you with the equation n+4=18, then you subtract 4 from both sides, this will give you the equation n=14. To make sure this solution is correct, you can plug it back into the equation filling 14 in for n, this equation is 14+4/-2=-9, and this solution works. Hope this helped :)

OK SO THERE IS 4 QUESTIONS PLS HELP PLSSS !! TYSM

1. Line (s) perpendicular to QR
2. Line (s) parallel to QR
3. Line (s) skew to QR
4. Line (s) parallel to plane LMQ

Answers

1) Lines MR and LQ
2)Lines NP, ML and JK
3)Line KN
4)line JKP
Final answer:

This answer explains the concepts of perpendicular lines, parallel lines, and skew lines in relation to a given line and plane.

Explanation:

1. Perpendicular lines are lines that intersect at a 90-degree angle. In the case of line QR, any line that intersects QR at a right angle would be perpendicular to it.

2. Parallel lines are lines that never intersect. So, any line that never intersects QR would be parallel to it.

3. Skew lines are lines that are not parallel and do not intersect. So, any line that does not intersect or run parallel to QR would be skew to it.

4. To have a line parallel to a plane LMQ, the line must never intersect the plane. Any such line would be parallel to plane LMQ.

Learn more about Lines in 2D and 3D here:

https://brainly.com/question/1293700

#SPJ2

Danica has a -$23 balance in her bank account. She gets paid $40 for cutting grass and immediately up deposit. How much money does she have?

Answers

Danica has -$23, but deposits $40

Add the two numbers

40 + (-23) = 40 - 23 = 17

Danica has $17 in her bank.

hope this helps

Danica's new balance after depositing $40 into her bank account is $17.

Danica has a -$23 balance in her bank account, which means she owes $23. When she deposits the $40 she earned from cutting grass, we can calculate her new balance as follows:

Step-by-step calculation:

Initial balance: -$23Amount deposited: +$40New balance: -$23 + $40 = $17

Therefore, after depositing the $40, Danica's new balance in her bank account is $17.

Lines(s)perpendicular to QR

Answers

You need to put a picture in order for me to anwser this question


Is -4 a solution to the equation 5+(-8)n=29

Answers

The answer you are looking for is -3.

To find this answer, you must get "n" by itself. First subtract 5 from both sides. You would get (-8)n = 24, which you then divide -8 on both sides, to get a final answer of n = -3.

I hope this helps!

what is the value of xy/z ifx=-2,y=-3 and z=4

Answers

Plug in the values of xy/z

(-2*-3)/4

=6/4

=3/2


The answer is 6/4. If you subsitute all of the variables with the corresponding numbers, we get 6/4

4x=5x-12 what does x equal

Answers

4x = 5x - 12

First you want to subtract 5x from both sides:

5x will cancel out

4x - 5 = -1

Next you want to divide -1 on both sides:

-1 will cancel out

-12/-1 = 12

Since there are two negatives it turns into a positive.

So your answer is x = 12.

Hope this Helps!!

4x = 5x - 12

12 = 5x - 4x

12 = x


A group of 150 dancers are auditioning for a dance show. 62% of the dancers trying out did not get on the show. How many dancers didn't get on the show?

Answers

Answer: 93 dancers did not get on the show.


Step-by-step explanation: Okay to figure this out you change 62% into a decimal which is 0.62. You then multiply 150 by 0.62 and you get your answer which is 93 dancers. I hope this helped! (:


Graph the relation. Is the relation a function? Why or why not? {(–1, 1), (–2, 1), (–2, 2), (0, 2)} Yes; there is only one domain value for each range value. No; a domain value has two range values. Yes; there is only one range value for each domain value. No; a range value has two domain values.

Answers

{(–1, 1), (–2, 1), (–2, 2), (0, 2)}

In a function, each input has an output

Each domain has a range. In a function, range can be repeated but domain cannot be repeated. Same domain cannot have two range values.

Here domain is {-1, -2, -2, 0}

Range is { 1, 1, 2, 2}

Domain -2 is repeating so this relation is not a function

Answer : No; a domain value has two range values.


Takala put 9 marbles in the box, jackie put in 7, and laird put in 11. Then they divided the marbles evenly among themselves. How many did each person get?

Answers

Answer:

The correct answer is 9.

Step-by-step explanation:

Let's start by analyzing the information we have.

We know that Takala put 9 marbles in the box, jackie put in 7, and laird put in 11.

Before continuing, the most convenient is to add these three things:

9 + 7 + 11 = 27.

We now know that those 27 were divided equally to each other, that is 27: 3.

So we just have to divide:

27: 3 = 9

In this way we can verify that each person obtained 9.

Graph y - 2 = -3/4 (x - 6) using the point and slope given in the equation.

Answers

Final answer:

To graph the equation, use the given slope and point to plot two points and draw a line through them.

Explanation:

To graph the equation y - 2 = -3/4 (x - 6) using the given point and slope, we can follow these steps:

First, identify the slope, which is -3/4. The slope represents the rate of change of y with respect to x. In this case, for every 4 units increase in x, y will decrease by 3 units.Next, identify the given point (6, 2). This point is on the graph and will help us plot the line.Using the slope and the given point, you can plot a second point and connect the two points to draw the line.Start with the given point (6, 2) and move 4 units to the right and 3 units down to plot the second point (10, -1).Finally, draw a line through the two plotted points to represent the graph of the equation.

Which equation has the least steep graph?

A. Y = 4 x - 3
B. Y = -3/4x + 5
C. Y = -10x - 8
D. Y = 1/2x + 2

Answers

The answer to your question is D.
Answer:

Option: D is the correct answer.

               D)       [tex]y=\dfrac{1}{2}x+2[/tex]

Step-by-step explanation:

A line is said to be steepest if the modulus of the slope is greatest and it is least steep if the modulus of the slope i.e. |m| is least.

We know that the slope intercept form of a line is given by:

[tex]y=mx+c[/tex]

where m is the slope of the line and c is the y-intercept of the line.

A)

[tex]y=4x-3[/tex]

The slope of line is: 4

i.e. m=4

and |m|=4

B)

[tex]y=\dfrac{-3}{4}x+5[/tex]

the modulus of slope is:

[tex]|m|=\dfrac{3}{4}=0.75[/tex]

C)

[tex]y=-10x-8[/tex]

The modulus of slope of line is:

[tex]|m|=10[/tex]

D)

[tex]y=\dfrac{1}{2}x+2[/tex]

The slope of the line is:

[tex]|m|=\dfrac{1}{2}=0.5[/tex]

The modulus of slope of line in options D is smallest.

Hence, the line in option: D is least steep.

the point slope form of the equation of the line that passes through (-4 -3) and (12, 1) is y - 1 = 1/4 (x - 12). what is the standard form of the equation for this line?

Answers

Standard Form is ...

ax + by = c

where a ≥ 0, b > 0 (if a=0), and {a, b, c} are mutually prime integers (unless irrational numbers are involved).

You can get there from where you're starting in a couple of steps. Multiply by the least common denominator of any fractions. (Here, you multiply by 4.) Then put the variable terms on the opposite side from the constant term. Make sure the leading coefficient is positive.

... 4y -4 = x -12

... x -4y = 8 . . . . add 12-4y

Earth titled axis affects the strength of sunlight in different places of earth's surface. If you are in an area that receiving less direct sunlight,where are you located? a) near the equator b) near the north pole c) near the

Answers

near the north or south pole

Final answer:

You're likely near the north pole if you're receiving less direct sunlight due to the tilt of Earth's axis, which causes varying amounts of sunlight in different regions, leading to seasons.

Explanation:

If you are in an area that is receiving less direct sunlight, you are likely located near the north pole (or the south pole). Earth's axis is tilted at 23.5 degrees, and as it revolves around the Sun, the tilt causes different parts of Earth to receive varying amounts of sunlight at different times of the year, leading to our seasons. When the Northern Hemisphere is tilted away from the Sun, it is winter there, and areas closer to the north pole receive very little direct sunlight, while the Southern Hemisphere experiences summer and receives more direct sunlight. Conversely, when the Southern Hemisphere is tilted away, it is winter there, with areas near the south pole getting less sunlight.

Find two numbers a and b whose sum a+b is -5 and whose difference a−b is 1.
Your answer is
a= ____
b= ____

Answers

The answer for a would be -2 and for b it would be -3. If you added both -2 and -3 together, you would get a sum of -5, and when for the other equation, the negative in front of b will cancel out the negative in front of -3, making it 3, and when you subtract -2 and 3, you'll end up with a difference of 1. a= -2  b= -3

Multiply.

4.9 X 6.7

Enter your answer in the box.

Answers

The answer would be 32.83

32.83 because using a calculator, you punch in numbers 4.9 and 6.7 together. Then, you press the equal sign to get 32.83


the function d(t) = 300,000t represents the distance (in kilometers) that light travel in t seconds find d(15) and explain it's meaning

Answers

This is just like an f(x) problem, but the letters are different.  First though, the t in d(t) will substitute for the t in the problem  d(t)=300,000t.  This is what it will look like:

d(t)=300,000t

d(15)=300,000t

d(15)=300,000(15)

d(15)=4,500,000.


To explain it, this means that in 15 seconds light will travel 4,500,000 km.

f(n + 1) = f(n) + 3 . The first term of the sequence is –4. What is the next term in the sequence?

Answers

Solution

f(n +1) = f(n) + 3

Here common difference (d) = 3. This is an arithmetic sequence.

First term f1 = -4

2nd term = f1 + 3

= -4 + 3

2nd term =  -1

The 2nd term =  -1

what is equivelent to 4.05 repeating

Answers

[tex]x=4.\overline{05}\\\\x=4.050505...\qquad|\cdot100\\\\100x=405.050505...\\\\100x-x=405.050505...-4.050505...\\\\99x=401\qquad|:99\\\\x=\dfrac{401}{99}[/tex]

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