A pile of sand has a weight of 90 kg.
The sand is put into a small bag, a medium bag and a large bag
in the ratio 2:3:7.
Work out the weight of sand in each bag.
but

Answers

Answer 1

Answer:

i hope it helps

mapriend

A Pile Of Sand Has A Weight Of 90 Kg.The Sand Is Put Into A Small Bag, A Medium Bag And A Large Bagin
Answer 2

Answer:

Step-by-step explanation:

divide 90 by 2, 3, 7

small bags 90 ÷ 2 = 45

medium bag 90 ÷ 3 = 30

large bag 90 ÷ 7 = 12.8 round it to nearet whole number = 13


Related Questions

Which list classifications for the figure

Answers

Answer: I think you forgot to post the picture

Step-by-step explanation:

What is the difference quotient of the function g(x) = 4^x

Answers

Answer:

First choice

Step-by-step explanation:

The difference quotient in general is  [tex]\frac{g(x+h)-g(x)}{h}[/tex]. To get an expression for  [tex]g(x+h)[/tex], replace  x  with x + h.

For this question,

[tex]\frac{4^{x+h}-4^x}{h}=\frac{4^x\cdot4^h-4^x}{h}[/tex]

Factor  [tex]4^x[/tex] out of the numerator.

[tex]\frac{4^x(4^h-1)}{h}[/tex]

Answer:

The answer is A the first option

Step-by-step explanation:

Just took the unit review and got a 100

Which graph represents an exponential function?

Answers

Answer:

The answer to your question is the third one

Step-by-step explanation:

The first graph is the graph of a

The second graph is of a rational function

The third one is of an exponential function

vasta third one dzuh

Any graph that looks like the above (big on the left and crawling along the x-axis on the right) displays exponential decay, rather than exponential growth. For a graph to display exponential decay, either the exponent is "negative" or else the base is between 0 and 1.

Solve for l:
[tex]v = \frac{ \sqrt{l + t} }{2 \sqrt{l} } [/tex]
.....​

Answers

Answer:

l = t/4v² - 1

Step-by-step explanation:

Given the expression

v = √l+t/2√l

We are to make l the subject of the formula as shown;

Cross multiply

2v√l =  √l+t

Square both sides

(2v√l)² =  (√l+t)²

4v²l = l+t

t = 4v²l - l

t = l(4v² - 1)

Divide both sides by 4v² - 1

t/4v² - 1 = l(4v² - 1)/4v² - 1

t/4v² - 1 = l

Swap

l = t/4v² - 1

Hence the required expression for l is t/4v² - 1

Find the sum: −11−7−3+1+⋯+225

Answers

Answer:

205

Step-by-step explanation:

Step-by-step explanation:

-11-7-3+1+225

-21+1+225

-20+225

205

A band expects to put 15 songs on their next CD. The band wriand records 60% more songs than they expect to put on the CD. During the editing process, 50% of the songs are removed. How many songs will there be on the final CD

Answers

Answer:

18 songs

Step-by-step explanation:

15 x 1.6 = 24

24 x 0.75 - 18

Question 3
Alicia graphed a solution of linear equations on a coordinate plane.
1
What is the approximate solution of the system?

Answers

Answer:

what did the answer end up being?

Step-by-step explanation:

What is the total area of the figure? NO LINKS ONLY ANSWERS

Answers

Answer:

Hello! answer: 24

Hope this helps!

Answer:

A. 5x3=15 B. 3x3=9 15+9=24

Step-by-step explanation:

In ΔABC, the measure of ∠C=90°, AB = 86 feet, and CA = 61 feet. Find the measure of ∠A to the nearest degree.

Answers

Answer:

<A=45°

Hope this helps you

Answer:

45

Step-by-step explanation:

i need help i honestly dont get this​

Answers

Answer:

I'm not too sure though but I think its change of subject formula

Bernita and Rosalee are comparing their heights. Bernita is 1.63
meters tall. Rosalee is 19 centimeters shorter than Bernita.
What is Rosalee's height in centimeters?

Answers

Answer:

1.44

Step-by-step explanation:

1.63-.19= 1.44

Write an equation of the line passing through (- 5,5) and having slope - 4. Give the answer in slope-intercept form.
The equation of the line in slope-intercept form is:

Answers

Answer:

y = - 4x - 15

---------------------------

Slope-intercept form:

y = mx + b, where m is the slope, b is the y-intercept

Point-slope form:

y - y₁ = m(x - x₁), where m is the slope and (x₁, y₁) is the point on the line

Use the point-slope form to find the equation and then convert it to slope-intercept form:

y - 5 =  - 4(x - (-5))y - 5 = -4(x + 5)y - 5 = - 4x - 20y = - 4x - 20 + 5y = - 4x - 15

Instructions: Find the missing length indicated.
Please help no links

Answers

Answer:

120

Step-by-step explanation:

To find the value of x we use Euclidian theorem

x^2 = 225*64

x^2 = 14400

x = 120

-2(t+7)=- 4t+12 what value of t makes the equation true

Answers

Answer:

T is 13

Step-by-step explanation:

-2(t+7)=-4t+12

-2t-14=-4t+12

2t=26

t=13

check answer:

-2(13+7)=-4(13)+12

-26-14=-52+12

-40=-40

Answer:

t is or equal to 13

Step-by-step explanation:

i done this before

HAVE A NICE DAY
WILL GIVE BRAINLST :)

Answers

Answer:

3. 30 degrees

4. 46 degrees

5. 55 degrees

Step-by-step explanation:

3. Let it be x

85+65+X=180

150 + x = 180

x = 180 - 150

x = 30 degrees

4. Let it be x

104 + 30 + x = 180

134 + x = 180

x = 180 - 134

x = 46 degrees

5. Let it be x

x + 85 + 40 = 180

x + 125 = 180

x = 55 degrees

PLEASE GIVE ME BRAINLIEST PLSSS

Answer:

Step-by-step explanation:

Which of the following values are in the range of the function graphed below?
Check all that apply.
10
- 10
10
. 10+
D A. 2
O B. 5
C. 3
O D. 1
E. -2

Answers

Answer:

All of the above.

Step-by-step explanation:

They are all within the range.

The range of the function graphed below are,

⇒ 2, 3, 1

What is mean by Function?

A relation between a set of inputs having one output each is called a function. and an expression, rule, or law that defines a relationship between one variable (the independent variable) and another variable (the dependent variable).

Given that;

The graph of function is shown.

Now, By graph;

The range of the function graphed below are,

⇒ (0 , 3]

Hence, By options;

The range of the function graphed below are,

⇒ 2, 3, 1

Learn more about the function visit:

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y≥ −4x+10
Hello, I’m having trouble the the following question above. Can you help me please?
The question asks to name the A and B points
A: ( , )
B: ( , )

Answers

I'm assuming x and y intercepts which would be (2.5,0) and (0,10)

The pH can be calculated using the equation pH = –log(H+), where H+ is the hydronium ion concentration. Find the hydronium ion concentration of a particular vinegar if the pH level is 2.5. (5 points)
3.979 x 10–1
9.536 x 103
3.162 x 102
3.162 x 10–3

Answers

The value of hydronium ion concentration in the vinegar is 3.162×10^-3 (optionD)

What is pH?

pH is defined as the negative log of the hydrogen ion concentration. The range of pH extends from zero to 14. A pH value of 7 is neutral, because pure water has a pH value of exactly 7.

pH can also be defined as the measure of acidity and alkalinity of a substance.

pH = –log(H+)

Therefore (H+) = 10^-(pH)

For a pH of 2.5, the hydronium ion concentration

= 10^-2.5

(H+) = 0.003162 = 3.162×10^-3

Therefore hydronium ion concentration of the vinegar is 3.162×10^-3

learn more about pH from

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COMPLETE
h
50
The sum n(n+6) =
+
1575
RETRY

Answers

9514 1404 393

Answer:

  50575

Step-by-step explanation:

The correct answer choice is marked. Evaluating it gives ...

  the sum is 50,575

A reporter for a student newspaper is writing an article on the cost of off-campus housing. A sample was selected of 10 one-bedroom units within a half-mile of campus and the rents paid. The sample mean is $550 and the sample standard deviation is $60.05. Provide a 95% confidence interval estimate of the mean rent per month for the population of one-bedroom units within a half-mile of campus. Assume that population is normally distributed.

Answers

Answer:

(507.05, 592.95)

Step-by-step explanation:

Given data:

sample mean = $550, sample standard deviation S = $60.05

95% confidence interval , n = 10

For 95% confidence interval for the mean

mean ± M.E.

where M.E. is margin of error = [tex]t_{n-1}, \alpha/2\times\frac{S}{\sqrt{n} }[/tex]

Substituting the values in above equation

[tex]=t_{10-1}, 0.05/2\times\frac{60.05}{\sqrt{10} }[/tex]

= 2.62×18.99

=42.955

= 550±42.95

=(507.05, 592.95)

Find x such that the line through (6, −3) and (7, 6) is perpendicular to the line through (−2, 5) and (x, −1).

Answers

Given:

The line through (6, −3) and (7, 6) is perpendicular to the line through (−2, 5) and (x, −1).

To find:

The value of x.

Solution:

Slope formula: If a line passes through two points, then the slope of the line is:

[tex]m=\dfrac{y_2-y_1}{x_2-x_1}[/tex]

The slope of the line through (6, −3) and (7, 6) is:

[tex]m_1=\dfrac{6-(-3)}{7-6}[/tex]

[tex]m_1=\dfrac{6+3}{1}[/tex]

[tex]m_1=9[/tex]

The slope of the line through (−2, 5) and (x, −1) is:

[tex]m_2=\dfrac{-1-5}{x-(-2)}[/tex]

[tex]m_2=\dfrac{-6}{x+2}[/tex]

We know that the product of slopes of two perpendicular lines is -1.

[tex]m_1\cdot m_2=-1[/tex]

[tex]9\cdot \dfrac{-6}{x+2}=-1[/tex]

[tex]\dfrac{-54}{x+2}=-1[/tex]

Multiplying both sides by (x+2), we get

[tex]-54=-1(x+2)[/tex]

[tex]-54=-x-2[/tex]

[tex]-54+2=-x[/tex]

[tex]-52=-x[/tex]

Divide both sides by -1.

[tex]52=x[/tex]

Therefore, the value of x is 52.

9. Empty taxis pass by a street corner at a Poisson rate of two per minute and pick up a passenger if one is waiting there. Passengers arrive at the street corner at a Poisson rate of one per minute and wait for a taxi only if there are less than four persons waiting; otherwise they leave and never return. Ella arrives at the street corner at a given time. Find her expected waiting time, given that she joins the queue. Assume that the process is in steady-state.

Answers

Answer:

0.37

Step-by-step explanation:

To resolve the given problem we will apply

persistent time Markov chain :   n = 0, 1, . . . , 4

 n = number of individuals pausing

where The equalization conditions are : πn = ( πn - 1/2 )

Given that  :

n = 0,1,2,3,4

π0 = 1/( 1 + 2−1 + 2−2 + 2−3 + 2−4) = 0.52 = 16/31

Also the normal number of travelers found by Ella will be represented as

E(N) = (π1 + 2π2 + 3π3) / ( π0 + π1 + π2 + π3) ------- ( 1 )

where : π1 = 8,  π2 = 4,  π3 = 2 , π0 = 16/31  input values into equation 1

E ( N ) =  22/30

given that the True to form hanging tight time = 0.5

hence Holding holding time = E(N ) * 0.5

therefore  the expected waiting time for Ella = ( 22/30 ) * 0.5 = 0.37

Round 123.7561 to the nearest hundredth place

Answers

The hundredth place is the second digit after the decimal. So 5 would be the hundredth place right now. Take a step to the thousandth place and see if the number is greater or less than 5 to determine if you should round up or round down. 6 is greater than 5, round up.
The answer is 123.76

Decimal numbers are number that contains decimal points. The value  123.7561 rounded to nearest hundredth is 123.76

Rounding of decimal numbers

Decimal numbers are number that contains decimal points in between the values.


Given the decimal value 123.7561, we are to convert the decimal values to the hundredth place.

This means that there must only be two values after the decimal points and the values rounded up if greater than 4.

Hence the value  123.7561 rounded to nearest hundredth is 123.76

Learn more on rounding up here: https://brainly.com/question/10340128

what is the slope of the table below? 3/8 15/12 9/10 0/7

Answers

The  slope of the table below? 3/8 15/12 9/10 0/7 is 23.8

What is slope?

Slope is defined as the rate of change of y with respect to x.  Invariably, it it the rise in y over the run  in x. put differently, slope is increase over increase in x

The slope of a line is defined

S= (increase in y)/(Increase in x) = Δy/Δx

Slope = (0/7 - 18/12) ÷ (9/10 -3/8)

Slope = 15/12 ÷ 42/80

Simplify the fractions to have

Slope = 15/12 * 80/42

The slope = 1200/504

Slope of the table is given as 23.4

Conclusively, the table gives us a slope approximately 23

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Find the exact value of the expression

Answers

Answer:

here is the correct answer

express each number as a product of two fractions 1/5

Answers

Answer:

Theres nothing to solve for wheres the numbers?

Step-by-step explanation:

If you save up $100 every 2 weeks, how much money would you have in a year ?

Answers

alr! so we know that there are around 52 weeks in a year (not counting leap years). and you save up 100 bucks every 2 weeks. then to find the answer, we do...

100(52/2)

100(26)

= $2600

youre welcome!

Kind of stuck any tips would also help!!

Answers

Answer:

Step-by-step explanation:

You must place in the question sign box the value of x that is above the question sign box because you are trying to fill out the y row.

Example: y=[tex]-\frac{0}{3} +2[/tex]= -0+2=2

Answer:

Step-by-step explanation:

tip:

plug the x values from the table ( the top row values ) into the equation

in this case its 0

BOX 1:

[tex]-\frac{0}{3} +2\\[/tex]

0 divided by anything = 0

so, 0 + 2 = 2

box 1 = 2

BOX 2:

[tex]-\frac{3}{3} +2[/tex]

3 div by 3 = 1 ( in this case negative 1 )

so, -1 + 2 = 1

box 2 = 1

BOX 3:

[tex]-\frac{6}{3} +2[/tex]

6 div by 3 = 2 ( in this case negative 2)

-2 + 2 = 0

box 3 = 0

Find the radius of the circle with a diameter of 100 mete radius:​

Answers

50

Step-by-step explanation:

100/2 = 50

So, the radius is 50.

I hope this helps, have a good day!

Answer:

r=50m

Step-by-step explanation:

Remeber it's the half of the number (N).

Please help will mark Brainly

Answers

Answer:

it too far i can't see it

Step-by-step explanation:

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