You can rake a 20 square meter lawn in 10 minutes. If your mother asks you to rake your own lawn, which is 30 square meters, how long will it take you to do this?

Answers

Answer 1
20 square meter lawn..............................10 min
10 square meter lawn...............................5 min
30 square meter lawn in.........................5*3=15 min

Related Questions

Create a Pattern with the rule n-4

Answers

The pattern starts with a number and then subtracts 4 to find the next number. In fact to go from any number to the next we subtract 4.

If we let n = 20, the pattern is 20, 16, 12, 8, 4, ...

If we let n = 40, the pattern is 40, 36, 32, 28, ...

We can use any number for n unless you were given a specific one to start though it did not look that way from the way you wrote the question.

Find the distance from the point to the given plane. (1, −7, 8), 3x + 2y + 6z = 5

Answers

Final answer:

To find the distance from the point (1, -7, 8) to the plane 3x + 2y + 6z = 5, we use the formula for the distance of a point from a plane, resulting in a distance of 32/7 units.

Explanation:

The question deals with finding the distance from a point to a given plane. Specifically, it asks for the distance from the point (1, −7, 8) to the plane defined by the equation 3x + 2y + 6z = 5. To solve this, we use the formula for the distance of a point (x1, y1, z1) from a plane ax + by + cz = d:

D = |ax1 + by1 + cz1 − d| / √(a2 + b2 + c2)

Substituting the given values, we get:

D = |3(1) + 2(−7) + 6(8) − 5| / √(32 + 22 + 62)

This simplifies to:

D = |3 − 14 + 48 − 5| / √(9 + 4 + 36)

D = |32| / √49

D = 32 / 7

Therefore, the perpendicular distance from the point to the plane is 32/7 units.

Which inequalities have no solution? Check all of the boxes that apply.

A. x > x
B. –3x mr001-1.jpg –3x
C. –4 + x > –2 + x
D. x – 2 < x + 3

Answers

Answer:  The answer is (A) and (C).


Step-by-step explanation:  We are given four options and we are to check which of these inequalities have no solution.

(A) We have

[tex]x>x\\\\\Rightarrow x-x>0\\\\\Rightarrow 0>1,[/tex]

which cannot be possible, so this inequality will have no solution.

(B) We have

[tex]-3x=-3x\\\\\Rightarrow -3x+3x=0\\\\\Rightarrow 0=0,[/tex]

which is always true, so this equation will have infinitely many solutions.

(C) We have

[tex]-4+x>-2+x\\\\\Rightarrow -4+x+2-x>0\\\\\Rightarrow -2>0,[/tex]

which is never true, so this inequality will have no solution.

(D) We have

[tex]x-2<x+3\\\\\Rightarrow x-2-x-3<0\\\\\Rightarrow -5<0,[/tex]

which is always true, so this inequality will have infinitely many solutions.

Thus, the correct options are (A) and (C).


Answer:

A. x > x

C. –4 + x > –2 + x

Step-by-step explanation:

bernie and chloe hiked the tremont trail 3 1/2 miles to the end and back then they hiked the wildflower trail 2 3/8 miles how far did they hike

Answers

Multiply 3 1/2 by two because the distance was hiked twice, then add 2 3/8.

=(3 1/2 * 2) + 2 3/8
=7 + 2 3/8
=9 3/8 miles hiked total

ANSWER: 9 3/8 miles

Hope this helps! :)

Final answer:

Bernie and Chloe hiked a total of 9 3/8 miles after completing the round trip on Tremont Trail and the Wildflower Trail.

Explanation:

Bernie and Chloe hiked the Tremont Trail which was 3 1/2 miles to the end and back, meaning they hiked 7 miles on this trail (since they had to return). After that, they hiked the Wildflower Trail, which was 2 3/8 miles long. To find out the total distance they hiked, you would add these two distances together.

The total distance for the Tremont Trail (to the end and back):
3 1/2 miles to the end + 3 1/2 miles back = 7 miles

The total distance for the Wildflower Trail:
2 3/8 miles

Adding both distances gives us:
7 miles (Tremont Trail) + 2 3/8 miles (Wildflower Trail) = 9 3/8 miles

Therefore, Bernie and Chloe hiked a total of 9 3/8 miles.

If triangle XYZ is reflected across the line y = 1 to create triangle X'Y'Z', what is the ordered pair of X'? (2 points)

Answers

Answer:(4,-3)

Step-by-step explanation:

Solve the inequalities by graphing. Select the correct graph. y > x y < -x

Answers

my answer is x y because as the simulation show here y>x y <-× and because we are taking a way the x in this problem here I am assuming that the yas well have to be taking out as well for for the fact that is one we are subtracting from the x so we stay with x y it show you in the example y> / yx /<-x

The solution to the system of inequalities y > x and y < -x is a V-shaped region in the second and fourth quadrants of the coordinate plane.

Graph attached.

To solve the system of inequalities graphically, you need to shade the regions on the coordinate plane that satisfy both inequalities.

The first inequality is y > x. This means that all points above the line y = x satisfy this inequality.

The second inequality is y < -x. This means that all points below the line y = -x satisfy this inequality.

Now, let's graph both lines and shade the regions that satisfy both inequalities:

Graph the line y = x. This is a straight line with a slope of 1 that passes through the origin (0,0) and goes up and to the right.

Graph the line y = -x. This is also a straight line with a slope of -1 that passes through the origin (0,0) and goes down and to the right.

Graph attached.

The shaded region that satisfies both inequalities is the area between these two lines, below y = -x, and above y = x.

It forms a V-shaped region in the second and fourth quadrants of the coordinate plane.

Therefore, the correct graph should show the shaded V-shaped region that represents the solution to the system of inequalities.

Graph attached.

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Plzzzzz i will give brainliest!!

Answers

Answer:

B = 24

Step-by-step explanation:

[tex](6p+2)^2\qquad\text{use}\ (a+b)^2=a^2+2ab+b^2\\\\=(6p)^2+2(6p)(2)+2^2=36p^2+24p+4\\\\\\36p^2+24p+4=36p^2+Bp+4\\\\\therefore B=24[/tex]

When full, a 5/8in binder is 8 in. Wide, 11 inches tall, and 5/8 inches thick. What is the volume of the binder?

Answers

volume is equal to the length x width x height. your answer should be 55
Answer:
volume = 55 in³

Explanation:
The volume of the binder can be calculated using the following rule:
Volume = length * width * height
We are given that:
length = 11 in
width = 8 in
height = thickness = 5/8 in

Substitute with the givens in the above equation to get the volume as follows:
volume = 11 * 8 * (5/8) = 55 in³

Hope this helps :)

Last year the chess club had 20 members. This year the club has 15 members. Find the percentage of change and state whether the percent of change is an increase or decrease

Answers

The negative sign indicates a decrease in the number of members. Therefore, the percentage change of -25% means that the number of members decreased by 25%. To summarize, the percentage change in the number of members from last year to this year is 25% decrease.

To find the percentage change in the number of members from last year to this year, we'll use the formula for percentage change:

[tex]\[ \text{Percentage change} = \left( \frac{\text{New value} - \text{Old value}}{\text{Old value}} \right) \times 100\% \][/tex]

Given that last year the chess club had 20 members and this year it has 15 members, we can plug these values into the formula:

[tex]\[ \text{Percentage change} = \left( \frac{15 - 20}{20} \right) \times 100\% \][/tex]

[tex]\[ \text{Percentage change} = \left( \frac{-5}{20} \right) \times 100\% \][/tex]

[tex]\[ \text{Percentage change} = -\frac{1}{4} \times 100\% \][/tex]

[tex]\[ \text{Percentage change} = -25\% \][/tex]

The negative sign indicates a decrease in the number of members. Therefore, the percentage change of -25% means that the number of members decreased by 25%.

To summarize, the percentage change in the number of members from last year to this year is 25% decrease.

The complete question is:

Last year the chess club had 20 members. This year the club has 15 members. Find the percentage of change and state whether the percent of change is an increase or decrease.

HELP!!!


1. A machine makes bolts that are 12 mm long. The bolts are considered acceptable if they are within 0.2 mm of 12 mm.
a. What is the longest the bolt can be and still be acceptable?
b. What is the shortest the bolt can be and still be acceptable?

Answers

a. 12mm
b. 11.8mm
i think i already answered this but

What is the area of a sector with a central angle of 2π9 radians and a diameter of 20.6 mm? Use 3.14 for π and round your answer to the nearest hundredth.

Answers

The answer to this is 37.01

Answer:

37.01

Step-by-step explanation:

Martha has 8 cookies split upon 6 friends. How many cookies will her friends and her get

Answers

You will need to divide 8 and 6. You should then get your answer.
Hi there!

To find the equal amount of cookies each of the 6 people will get, we divide:

8 / 6 = 1 1/3

So, each person gets 1 1/3 cookies. 

Hope this helps!

Explain how to write an equivalent expression using the distributive property. 2(11 + y)

Answers

Final answer:

To write an equivalent expression using the distributive property for the expression 2(11 + y), distribute 2 to both terms inside the parentheses and simplify.

Explanation:

To write an equivalent expression using the distributive property for the expression 2(11 + y), we can distribute the 2 to both terms inside the parentheses.

This gives us:

2 * 11 + 2 * y = 22 + 2y

So, the equivalent expression using the distributive property is 22 + 2y.

Econometrics answers using the ols estimates shown in the table​ below, compare the estimated effects of a 13 ​% increase in average district income on test scores in california and massachusetts.

Answers

Please Send Lions, Monkeys, Cats And Zebras Into Lovely Hot Countries
Signed General Penguin
P - potassium
S - sodium
L - lithium
M - magnesium
C - calcium
A - aluminium
Z - zinc
I - iron
L - lead
H - hydrogen
C - copper
S - silver
G - gold
P - platinum

Find the equations of the tangent line to the curve at the given point. y = 9cos x. (π/3,4.5)

Answers

Consider this option.
The details (the curve and the tangent line) are provided on the attached picture.

The equation of the tangent line to the curve is

y = -9 ( √3 / 2 )x + [ ( 3π√3 + 9 ) / 2 ]

What is an Equation of a line?

The equation of a line is expressed as y = mx + b where m is the slope and b is the y-intercept

And y - y₁ = m ( x - x₁ )

y = y-coordinate of second point

y₁ = y-coordinate of point one

m = slope

x = x-coordinate of second point

x₁ = x-coordinate of point one

The slope m = ( y₂ - y₁ ) / ( x₂ - x₁ )

Given data ,

Let the curve be y = 9 cos ( x )

To find the equation of the tangent line to the curve y , take the derivative of y , we get

dy / dx = 9 ( - sin ( x ) )

dy / dx = -9 sin ( x )

So , y' = -9 sin ( x )

when x = π/3

Now plug in your value for x into y'

-9 sin ( π/3 ) = -9 ( √3 / 2 )

This is the slope of the tangent line at x = π/3

And , To find the equation of the tangent line, we need a value for y. Simply plug your x value into the original equation for y

So ,

y = 9 cos x

y = 9 cos ( π / 3 )

y = 9 ( 1/2 )

y = 9/2

Now use point slope form to find the equation of the tangent line

y - y₁ = m ( x - x₁ )

Substituting the values in the equations , we get

y - 9/2 = -9 ( √3 / 2 ) ( x - π/3 )

On simplifying the equation , we get

y - 9/2 = -9 ( √3 / 2 )x + 9 ( √3 / 2 ) ( π/3 )

Adding 9/2 on both sides of the equation , we get

y = -9 ( √3 / 2 )x + [ ( 3π√3 + 9 ) / 2 ]

Hence , the equation is y = -9 ( √3 / 2 )x + [ ( 3π√3 + 9 ) / 2 ]

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A landscaper has 3/4 ton of mulch. She puts 1 1/6 ton of mulch on each flower bed. How many flower beds does she put mulch on?

Answers

To answer this question you will divide the total amount of mulch into groups that are the size of the amount of mulch needs for each flower bed.

So, 3/4 divided by 1 1/6 ton. Because the amount you are dividing by is bigger than the amount you started with, your answer will not be one full garden bed.

3/4 divided by 1 1/6 can be rewritten as 3/4 divided by 7/6, and then as 3/4 x 6/7. The answer is 9/14 of a garden she can put mulch on.

What is 100 + 101 + 102 equal to?

Answers

Answer:

111

Step-by-step explanation:

Answer:

111

Step-by-step explanation:

A farmer has 60 bales of hay stored in his barn. He feeds his cows 4 bales each day. Which graph represents the number of bales in the barn, y, after feeding his cows for x days?

Answers

Answer:

The required equation is [tex]y=-4x+60[/tex]  and graph of this equation is shown below.

Step-by-step explanation:

Let y be the number of bales in the barn after feeding his cows for x days.

It is given that a farmer has 60 bales of hay stored in his barn.

Initial number of bales = 60

He feeds his cows 4 bales each day. It means number of bales decrease by 4 bales per day.

Slope = -4

The slope intercept form of a line is

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

where, m is slope and b is y-intercept or initial value.

Substitute m=-4 and b=60 in the above equation.

[tex]y=-4x+60[/tex]

The y-intercept of the graph is 60.

The table of values is shown below

   x               y

   0             60

  15              0

Plot these these points on coordinate plane and connect them by a straight line.

The required graph is shown below.

for Owens lemonade recipe, 6 lemons are required to make 5 cups of lemonade?express your answer in simplest form.

plz help

Answers

There are 1.2 lemons in each glass of lemonade.

A sample is selected from a population with a mean of u=100 and a standard deviation of o-20 what is the expected value of m and the standard error for a sample of n=4

Answers

n=23...................................

select the correct product (x2+3)(x3-5)

Answers

The question involves multiplying two polynomials, (x^2+3) and (x^3-5), using the distributive property to find the product x^5 - 5x^2 + 3x^3 - 15.

The question asks for the product of the polynomials (x2+3) and (x3-5). To find the product, each term in the first polynomial is multiplied by each term in the second polynomial. This is known as the distributive property or the FOIL method when dealing with binomials. Therefore, the product is:

x^5 - 5x^2 + 3x^3 - 15.

To summarize the multiplication process:

Multiply x2 by x3 to get x5

Multiply x2 by -5 to get -5x2

Multiply 3 by x3 to get 3x3

Multiply 3 by -5 to get -15

Hence, This is the standard process for multiplying polynomials.

A hypothesis test has a significance level of 10%. Explain what this significance level represents.

Answers

1.)A significance level of 10% means that there is a 10% probability of rejecting the null hypothesis incorrectly.
2.) the significance level determines the critical region of the hypothesis test

Answer:

A significance level of 10% i.e.0.10 represents the chance of rejecting the null hypothesis

Step-by-step explanation:

Given :A hypothesis test has a significance level of 10%.

To Find :Explain what this significance level represents.

Solution :

Definition : The significance level is the probability of rejecting the null hypothesis when it is true.

So, significance level = 10%.

This means there is a 0.10 chance of rejecting the null hypothesis

Hence a significance level of 10% i.e.0.10 represents the chance of rejecting the null hypothesis

what is 9/10 take away 6 tenths

Answers

Hello!

If you were taking 6 away from [tex] \frac{9}{10} [/tex], you would get [tex] \frac{3}{10} [/tex]. Different from tenths, only in decimals.

Enjoy.
~Isabella

the answer is 3/10 because since they are both tenths its like doing 9 - 6

Graph each quadrilateral ABCD. Then determine the most precise name for it.
A(3, -2). B(5,4). C(3,6). D(1,4).

Answers

This quadrilateral is 'deltoid'. All the details are in the picture.

Helen makes $66 a day . How much will she make if she works 5 1/2 days ?

Answers

You answer is: she will make $363

At a store, 3 chairs and 4 desks together cost $367.95. The total costof 4 chairs and 6 beds is $$720.72. If the price of the desk is 2 times as much as the price of the chair, what is the total cost of 5 desks and 4 beds?

Answers

$725.78

First timer. Do I need to write detailed solution?
Final answer:

After creating equations based on the given costs and solving for the price of chairs, desks, and beds, we find that the total cost for 5 desks and 4 beds is $725.78.

Explanation:

To solve this problem, we will start by setting up two equations based on the information given about the prices of chairs, desks, and beds. Let's denote the cost of one chair as C, the cost of one desk as D, and the cost of one bed as B. According to the problem, the desk costs 2 times as much as the chair, so we have D = 2C.

Now, we can create equations based on the total costs provided:

3 chairs and 4 desks cost $367.95 -> 3C + 4D = 367.954 chairs and 6 beds cost $720.72 -> 4C + 6B = 720.72

Substitute the value of D from D = 2C into the first equation:

3C + 4(2C) = 367.95 -> 11C = 367.95 -> C = 33.45

With the cost of a chair found, we can find the cost of a desk:

D = 2C = 2(33.45) = 66.90

Now, to find the cost of a bed, we use the second equation and substitute values for C:

4C + 6B = 720.72 -> 4(33.45) + 6B = 720.72 -> 133.80 + 6B = 720.72 -> 6B = 586.92 -> B = 97.82

Finally, we calculate the total cost of 5 desks and 4 beds:

5D + 4B = 5(66.90) + 4(97.82) = 334.50 + 391.28 = 725.78

The total cost of 5 desks and 4 beds is $725.78.

The accountant at patton company has determined that income before income taxes amounted to $11,000 using the fifo costing assumption. if the income tax rate is 30% and the amount of income taxes paid would be $600 greater if the lifo assumption were used, what would be the amount of income before taxes under the lifo assumption? $11,600 $13,000 $9,000 $10,400

Answers

Given:
Income before income taxes under fifo costing : $11,000
Income tax rate: 30%
Income tax paid under lifo costing: $600

Amount of income before taxes under lifo method is $13,000

600 / 30% = 2,000
2000 + 11,000 = 13,000

FIFO means first-in; first-out. LIFO means Last-in,First-out. These methods are used in accounting for inventories. It affects the amount that reflects on the cost of goods sold portion of the income statement. FIFO costing is used to maximize income values in Financial statements while LIFO costing is used for tax accounting purposes to minimize tax obligations. 

why is the number 2 a prime or composite?

Answers

Answer:

2 is prime because it is a positive integer only divisible by itself and 1.

Step-by-step explanation:

2 is the smallest prime.

A composite number is one that has more than one prime factor. 4 = 2·2 is composite, for example.

The number 1 is neither prime nor composite.

Answer:

prime

Step-by-step explanation:

Determine whether each decimal is equal to 77%.

Decimal
Yes
-
Yes
No
-
No
0.077


0.770


0.77


7.7

Answers

o.77
0.770 these are the ONLY two correct answer

Hope this helps!
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How long will it take for 2 g of a sample of iodine-131, which has a half-life of about 8 days, to decay to 0.04 g?

Answers

we know that

This problem can be represented through the following equation

A = A₀(1/2)^t/h
where
A----------->  is the amount of substance left after time t
A₀ ----------> is the original amount---------> 2 g
h------------->  is the half-life-----------> 8 days

for A=0.04 g
t=?
0.04 = 2(1/2)^t/8
0.02 = (1/2)^t/8
Take ln on both sides:
ln(0.02) = ln [(1/2)^t/8]
ln(0.02) = (t/8)(ln 1/2)
t = 8*ln(0.02)/ln(1/2)
t = 45.15 days

the answer is 45.15 days
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