One grain of this sand approximately weighs 6 x 10^-6g.
b) How many grains of sand are there in 7200 kg of sand?
Give your answer in standard from.​

Answers

Answer 1

Answer:

1.2×10¹² grains

Step-by-step explanation:

1 grain = 6×10⁻⁶ g

7200 kg = 7200000 g = 7.2×10⁶ g = 7.2×10⁶ ÷ 6×10⁻⁶ = (7.2÷6)×10⁶⁻ ⁽⁻⁶⁾ =1.2×10¹² grains

Related Questions

y = pq/p+q
p = 2.4×10^5

Answers

Answer:

Step-by-step explanation:

p=2.4×10^5.

q=3.7×10^5

pq = 2.4 * 10⁵ * 3.7 * 10⁵

    = 2.4 * 3.7 *10⁽⁵⁺⁵⁾

    = 8.88 * 10¹⁰

p + q = 2.4 * 10⁵ + 3.7 * 10⁵

      = ( 2.4 + 3.7) * 10⁵

      = 6.1 * 10⁵

[tex]y = \frac{pq}{p+q}\\\\ = \frac{8.88*10^{10}}{6.1*10^{5}}\\\\= 1.46 * 10^{10-5}\\= 1.46 * 10^{5}[/tex]

Which situation can be modeled using a linear function? the population of yeast that doubles after every minute the population of yeast that doubles after every minute the height of a projectile after it is launched the height of a projectile after it is launched the distance covered by a car moving at a constant speed the distance covered by a car moving at a constant speed the cost of a printing machine that depreciates every year at 2% per year

Answers

I believe it would be the distance covered by a car moving at a constant speed. I hope this helps! :)

PLS ANSWER WHOEVER ANSWERS FIRST GETS BRAINLIEST!!!!

Shelby bought 6½ pounds of hamburger meat to make hamburger
patties. However, 4⅔ pounds of the hamburger had to be thrown away.
How much of the hamburger meat did not get thrown away?

Answers


Answer- 1 5/6 of the hamburger meat did not get thrown away.

Step-by-step explanation-
1. Turn the mixed numbers into fractions. 6 1/2=13/2
4 2/3= 14/3
2. Subtract. To do this you have to make sure that both fractions have the same denominator (bottom number) I did that by multiplying the bottom numbers by each other, and whatever you do to the top you do to the bottom. So it will turn out to be 39/6 - 28/6 = 11/6 or 1 5/6

Edmond goes to the doctor for a check-up. When he gets home, he tells his mother that he weighs 1,360 ounces and is 62 inches tall. What is Edmond's height and weight in feet and pounds, respectively?

Answers

Answer:

113.3 pounds

5.17 ft

Step-by-step explanation:

Step one:

given data

weighs 1,360 ounces and is

Height = 62 inches tall.

Required:

We are expected to perform unit conversion

from ounces to pounds

and from inches to feet

Step two:

1 pound is 16 ounces

x pound is 1360 ounces

cross multiply

16x= 1360

x= 1360/16

x= 113.3 pounds

Step three

1 inches is 0.0833333ft

62 inches is x ft

cross multiply

x= 5.17 ft

w=2, p=3 ........ 5p-2w

Answers

Answer:

11

Step-by-step explanation:

5 times 3 {subracted by} 2 times 2

15 - 4 = 11

WILL MARK BRAINLIEST PLEASE HELP I NEED SOME SMART PEOPLE WILL MARK BRAINLIEST!!!

Answers

Answer:

The answer is [tex]6\frac{5}{8}[/tex]

Step-by-step explanation:

-12 pounds + [tex]5\frac{3}{8}[/tex]

-12+[tex]5\frac{3}{8}[/tex]

=-12+5+[tex]\frac{3}{8}[/tex]

=(-12+5)+[tex]\frac{3}{8}[/tex]

=(-7)+[tex]\frac{3}{8\\}[/tex]

=[tex]-6\frac{5}{8}[/tex]

Mr.Yoo's weight dropped by [tex]6\frac{5}{8}[/tex]

Answer:

6 5/8 edited--> i didnt see that someone alr answer this

Step-by-step explanation:

what is a gram yyyyyyyyyy

Answers

Answer:

The FitnessGram Pacer test is a multistage aerobic capacity test that progressively gets more difficult as it continues. The 20 meter Pacer test will begin in 30 seconds. Line up at the start. The running speed starts slowly, but gets faster each minute after you hear this signal *boop*.

Step-by-step explanation:

Answer:

The Grammy Award, or just Grammy, is an award presented by the Recording Academy to recognize achievements in the music industry. The trophy depicts a gilded gramophone. The annual presentation ceremony features performances by prominent artists, and the presentation of those awards that have a more popular interest.

Juana went shopping with $ 50 and spent $ 45. What percentage of her money did she spend?

Answers

Answer: 90%

Step-by-step explanation:

Answer:

90%

Step-by-step explanation:

In order to find the percentage of the money Juana spent while shopping, you must take the amount of money spent and divide it by the total amount of money.

$45 dollars spent divided by $50 dollars total will give you your fraction, in decimals:

45 / 50 = 0.90

Multiply by 100% to find your percentage

0.90 * 100% = 90.0%

Mark invests $6,700 in an online savings account which gives 4.2% simple annual interest. He also invests $6,000 in a savings account at his local bank which gives 6.9% simple annual interest. After fifteen years how much more interest will it have earned, to the nearest dollar?

Answers

Answer:

$4,221.00 for online and 6,210.00 for the instore

Step-by-step explanation:

Calculation:

First, converting R percent to r a decimal

r = R/100 = 4.2%/100 = 0.042 per year.

Solving our equation:

A = 6700(1 + (0.042 × 15)) = 10921

A = $10,921.00

The total amount accrued, principal plus interest, from simple interest on a principal of $6,700.00 at a rate of 4.2% per year for 15 years is $10,921.00.

Calculation:

First, converting R percent to r a decimal

r = R/100 = 6.9%/100 = 0.069 per year.

Solving our equation:

A = 6000(1 + (0.069 × 15)) = 12210

A = $12,210.00

The total amount accrued, principal plus interest, from simple interest on a principal of $6,000.00 at a rate of 6.9% per year for 15 years is $12,210.00.

given the polynomial x^4-3xy^2 find a polynomial of x so that the sum of the polynomials equals 4x^5+7xy^2
PLZ HELP WILL MARK BRAINLEST IF CORRECT WITH SOME WHAT OF AN EXPLANATION

Answers

Answer:

4x^5 - x^4 + 10xy^2.

Step-by-step explanation:

x^4 - 3xy^2 + P(x) = 4x^5 + 7xy^2

P(x) = 4x^5 + 7xy^2 -  (x^4 - 3xy^2)

= 4x^5 + 7xy^2 - x^4 + 3xy^2

= 4x^5 - x^4 + 10xy^2.

Simplify (45-28) - |15-21|

A) 11
B) 17
C) 23
D) 29​

Answers

The answer is A.) 11

Solve the equation -3(x-14)+9x=6x+42. Does the equation have one solution, no solution, or infinitely many solutions?

Answers

Answer:

-3x+42+9x=6x+42

0x=0

x=0

Step-by-step explanation:

there is no solution

Answer:

infinitely many solutions

Step-by-step explanation:

Given

- 3(x - 14) + 9x = 6x + 42 ← distribute and simplify left side

- 3x + 42 + 9x = 6x + 42

6x + 42 = 6x + 42

Since the equation is the same on both sides, then any real value of x is a solution.

That is has infinite solutions

Tyler is riding his bike from his house to the store, which is 4 MI away. Tyler gets to the store it 18 minutes after he leaves his house.Find Tyler speed in miles per minute. Use dimensional Analysis to check the reasonableness of your answer

Answers

Answer:

0.22 miles/minute

Step-by-step explanation:

Tyler is riding his bike from his house to the store, which is 4 MI away. Tyler gets to the store it 18 minutes after he leaves his house.Find Tyler speed in miles per minute.

The formula for speed is given as:

Distance/Time

Hence:

Tyler's distance = 4 miles

Time = 18 minutes

Speed(Miles/ minute) = 4 miles/18 minutes

= 0.2222222222 miles per minutes

= 0.22 miles/minute

The choir is selling candy bars to raise money for a trip they sell each candy bar for $5 there are 7 candy bars in each box and each student in the choir can sell 2 boxes of candy bars per day there are 5 students in the choir how much money can the choir raise in 8 days?

Answers

Answer:$2800

Step-by-step explanation: Lets first figure out how much money a box of candy bars is worth. We know that each candy bar is worth $5 and that there are 7 candy bars per box. We can multiply 7*5 to figure out that each box is worth $35.

Now lets figure out how many boxes can be sold each day. Each student can sell two boxes a day. 5 students selling 2 boxes each is 5*2= 10 boxes total sold a day.

Now finally we use what we found to figure out the amount of money made per day. We know that there are 10 boxes being sold and that each box makes them $35. We just multiply 10 boxes by $35 to get $350 dollars each day.

Since they sell for 8 days we just multiply 8*$350 to get $2800.

Carol walks one mile every 24 minutes and walks 11 hours per week. If Carol takes 6 weeks off for rest throughout the year, how many miles will she walk per year? Assume there are 4 weeks per month.

Answers

Answer:

1,155 miles in a year.

Step-by-step explanation:

Assuming there are 4 weeks per month, that would mean there are a total of 48 weeks. If she takes 6 weeks off then that would leave 42 weeks. We know need to find how many minutes are in 11 hours by multiplying 11 by 60min.

11 * 60 = 660min

Now we need to divide 660min by the 24min it takes to walk 1 mile which will also give us the number of miles she walks per week

660 / 24 = 27.5 miles per week

Finally, we need to multiply the number of miles by the number of weeks in the year.

27.5 miles * 42 weeks = 1,155 miles in a year.

Help pls and thank :)

Answers

Answer:

-5

Step-by-step explanation:

slope is rise/run

so, the rise is -5, the 'run' is 1

so, -5

i have a c please help it will mean alot

Answers

[tex]\Large\boxed{\tt Answer: 5\frac{2}{3} }[/tex]

[tex]\tt Step-by-step~explanation:[/tex]

We can solve this by dividing both numbers by four.

[tex]\tt 8\div4=2\\12\div4=3\\\frac{2}{3}[/tex]

We then add that to 5 to get our answer.

What is the slope of the line?

PLEASE AS SOON AS POSSIBLE!!
13 points for whoever answers

Answers

Answer

-2/2

Step-by-step explanation:

it gotta be -2/2. It has to be

which equation represents the graph below

y= x/35
y=35x
y=x-35
y=x+35

Answers

Answer:

B: y=35x

Step-by-step explanation:

You can verify this by plugging 1 to be x (35*1=35) and 2 (35*2=70)

i cant figure out how to do this question plz help!

Answers

Answer:

[tex] slope (m) = \frac{1 - (-5)}{2 - (-1)} [/tex]

[tex] = \frac{1 + 5}{2 + 1} [/tex]

[tex] = \frac{6}{3} = 2 [/tex]

Step-by-step explanation:

Find the slope (m) using the two points given, (-1, -5) and (2, 1):

[tex] slope (m) = \frac{rise}{run} = \frac{y_2 - y_1}{x_2 - x_1} [/tex]

Let,

[tex] (-1, -5) = (x_1, y_1) [/tex]

[tex] (2, 1) = (x_2, y_2) [/tex]

Plug in the values into the equation:

[tex] slope (m) = \frac{1 - (-5)}{2 - (-1)} [/tex]

[tex] = \frac{1 + 5}{2 + 1} [/tex]

[tex] = \frac{6}{3} = 2 [/tex]

Write an expression that uses subtraction and division that has a value of 3.​

Answers

Answer:

12/2-3

Step-by-step explanation:

12/2-3

Sara can complete 3/4 of a puzzle in 7/8 of an hour. How much a puzzle can she complete in an
hour?

Answers

Answer:

x = 6/7 of a puzzle

Step-by-step explanation:

Number of puzzle : time taken

= 3/4 : 7/8

How much a puzzle can she complete in an hour?

Let

x = number of puzzle to complete

Number of puzzle : time taken

= x : 1

Equate both ratios to solve for x

3/4 : 7/8 = x : 1

3/4 ÷ 7/8 = x / 1

3/4 × 8/7 = x / 1

24/28 = x / 1

Cross product

24 * 1 = 28 * x

24 = 28x

x = 24/28

= 6/7

x = 6/7 of a puzzle

Kiran and Clare live 24 miles away from each other along a rail trail. One Saturday, the two friends started walking toward each other along the trail at 8:00 a.m. with a plan to have a picnic when they meet.
ANSWER: Kiran is jogging at 9.6 miles per hour.

Answers

Kiran is jogging at 9.6 miles per hour

A glass is
4
7
full. Then 70cm3 of orange juice is poured in.
The glass is now
3
4
full. What is the total volume of the glass?

Answers

Answer:

Step-by-step explanation:

4/7 x + 70 cm^3 = 3/4 x          Subtract 4/7 x from both sides

3/4 x - 4/7 x = 70 cm^3          The lowest common denominator is 28

[tex]\frac{3*7*x}{4*7} - \frac{4*4x}{4*7} = 70 cc\\\frac{21*x}{28} - \frac{16*x}{28} = 70 cc\\\frac{5x}{28}= 70cc\\[/tex]

5x = 70*28

5x = 1960                                Divide by 5

x = 1960/5

x = 392 cc

Answer:

392 cm³

Step-by-step explanation:

The difference of 3/4 and 4/7 of the volume is 70 cm:

3/4 - 4/7 = 7/7*3/4 - 4/4*4/7 = 21/28 - 16/28 = 5/28

5/28 of the volume is 70 cm³

Divide both numbers by 5/28 to find the total volume of the glass:

70 : 5/28 = 70*28/5 = 392 cm³

Find the length of the missing side. Round to the nearest tenth (one decimal place).

Answers

Answer:

x ≈ 9.4

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to Right

Equality Properties

Trigonometry

[Right Triangles Only] Pythagorean Theorem: a² + b² = c²

Step-by-step explanation:

Step 1: Define

We are given a right triangle. We can use PT to find the missing length.

Step 2: Identify Variables

Leg a = 9

Leg b = x

Hypotenuse c = 13

Step 3: Solve for x

Substitute [PT]:                   9² + x² = 13²Isolate x term:                     x² = 13² - 9²Exponents:                          x² = 169 - 81Subtract:                              x² = 88Isolate x:                              x = 2√22Evaluate:                              x = 9.38083Round:                                 x ≈ 9.4

Jillian is making accessories for the soccer team. She uses 667.43 inches of fabric on headbands for 27 players and 4 coaches. She also uses 237.87 inches of fabric on wristbands for just the players. How much fabric was used on a headband and wristband for each player?

Answers

Answer:

21.53 in of fabric on headbands

7.67 in of fabric on wristbands.

Step-by-step explanation:

Step one:

given data

the total amount of person players plus coaches= 27+4= 31

for each person, she uses = 667.43/31= 21.53 in of fabric on headbands

She also uses 237.87inches of fabric on wristbands for just the players

For each player, she will use= 237.87/31= 7.67 in of fabric

Hence for each player, she used

21.53 in of fabric on headbands

7.67 in of fabric on wristbands

A sales associate farms a neighborhood with 750 homes. The owners seem to list their homes every six years. How many listings should the sales associate obtain if she can list 40% of the homes in the neighborhood

Answers

Answer:

50 homes

Step-by-step explanation:

Given that:

Total Number of homes = 750

Years at which home is listed = 6

Thus average listing per year = (total number of homes / years)

Average listing per year = 750 / 6

Average listing per year = 125 homes

If 40% of homes in the neighborhood can be listed :

0.4 * 125

= 50 homes

Sales associate should obtain listing of 50 homes

Calculation of homes listing obtained by Sales associate

Given : Total 750 houses with listing tendencies every six years.

So, average annual houses listing = 750 / 6 = 125

Also, listings = 40%

Hence, sales associate obtain 40% of 125 = 50

To learn more about Percentage listings, refer https://brainly.com/question/5692146?referrer=searchResults

How many ​3-digit numbers can be formed using the digits​ 0, 1,​ 2, 3,​ 4, 5,​ 6, 7,​ 8, 9, if repetition of digits is​ allowed?

Answers

10!/10 which is 10*9*8*7*6*5*4*3*2*1 / 10 = 362880
im not sure about this, let me know if im wrong!

3
Question 5 (1 point)
Saved
Line AB has a slope of
value of k.
3
4.
and the endpoints A(11,3) and B(3, k). Determine the value of k
3
-41
9
-9

Answers

dont click this one it is not the right answer

Explain what it means to simplify a trigonometric function?????

Answers

Answer:

a function of an angle, or of an abstract quantity, used in trigonometry, including the sine, cosine, tangent, cotangent, secant, and cosecant, and their hyperbolic counterparts.

Step-by-step explanation:

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