2.
It takes Troy 3 hours to mow his family's large lawn. With his little brother's help, he can
finish the job in only 2 hours. How long would it take the little brother to mow the entire
lawn alone ?
(A) 4 hr
(B) 5 hr
(C) 5.5 hr
(D) 6 hr
(E) 6.75 hr

Answers

Answer 1

Answer:

It takes four hours because the little bro is alone and only one lawn mower is used


Related Questions

write rhis number in standard notation. 1.342×10^-7​

Answers

Answer:

0.0000001342

Step-by-step explanation:

John's bank account was overdrawn. The status of his account was -$133. He did not realize the problem and wrote another check for $55. The bank charged him a $22 fee for being overdrawn.

What was the new status of John's account at this point?

Answers

Answer:

210

Step-by-step explanation:-133-55-22=210

Write a numerical or algebraic expression for each verbal phrase .

Seven fewer than a number?

Alice rented bowling shoes for $3.25 and played five games at $2 each write evaluate an expression for the total coast of bowling?

Answers

Answer:

n-7

Step-by-step explanation:

Seven fewer than a number means that you just subtract 7 from the original number.

5. Find the area of the shaded region as a simplified
expression.
3r
x + 8 stund
2r - 1
x2–5x+3

Answers

Answer:

x³ -3x²-34x+24

Step-by-step explanation:

the area of the shaded region =

(x²-5x+3)(x+8) - 3x(2x-1) =

x³+8x²-5x²-40x+3x+24- 6x²+3x =

x³ -3x²-34x+24


Find the present balance.
Below is Elizabeth Hallett's bank statement. Her previous balance was $271.31 What is her present balance?

Answers

Credited balance:-

[tex]\\ \rm\longmapsto 115.90+115.90+345.85[/tex]

[tex]\\ \rm\longmapsto 231.80+345.85[/tex]

[tex]\\ \rm\longmapsto 577.65[/tex]

Debited amount:-

[tex]\\ \rm\longmapsto 25.85+2.00[/tex]

[tex]\\ \rm\longmapsto 27.85[/tex]

Checked amount:-

[tex]\\ \rm\longmapsto 19.45+21.02+95.98[/tex]

[tex]\\ \rm\longmapsto 117+19.45[/tex]

[tex]\\ \rm\longmapsto 136.45[/tex]

Total change in balance

[tex]\\ \rm\longmapsto 577.65-(27.85+136.45)[/tex]

[tex]\\ \rm\longmapsto 577.65-191.3[/tex]

[tex]\\ \rm\longmapsto 386.35[/tex]

Now

Current balance

[tex]\\ \rm\longmapsto 386.35+271.31[/tex]

[tex]\\ \rm\longmapsto\$ 657.66[/tex]

Divide.
10.12 105 so yeah help

Answers

Answer:

0.0001012

Step-by-step explanation:

I have explained the solution on paper step by step! but I am typing this to get the solution. to 20 characters

The mean useful life of car batteries is 55 months. They have a standard deviation of 2. Assume the useful life of batteries is normally distributed. a. Calculate the percent of batteries with a useful life of less than 51 months. (Round your answer to the nearest hundredth percent.) b. Calculate the percent of batteries that will last longer than 61 months. (Round your answer to the nearest hundredth percent.) a. Percent of batteries % b. Percent of batteries %

Answers

Answer: a. 0.13% b. 2.28%

Step-by-step explanation:

Let x denotes the useful life of batteries.

Given: months,

Since X is normally distributed.

The probability that batteries with a useful life of less than 38 months

The percent of batteries with a useful life of less than 38 months =0.13%

The probability that batteries will last longer than 68 months

The percent of batteries that will last longer than 68 months =2.28%

Step-by-step explanation:

How would I write a number subtracted from 2 times a number is 19 as an equation?

Answers

Answer:

[tex]let \: the \: number \: be \:2 x \\ 2x - x = 19 \\ x = 19 [/tex]

This is the answer

if wrong please correct me ! :)

If you drive 565 miles a day, how far will you have gone at the end of a week?​

Answers

565x7= 3,955
If you drive 565 miles a day for 7 days do 565 times 7!


HELP PLEASE!!!!
What is the slope of the line?

Answers

Answer: slope (m) = - 9/5

Step-by-step explanation:

Find two points = (-4,5) (1, -4)

The slope going uphill is positive and downhill is negative.

Slope m = (y-y)/(x-x)

(5- -4)/-4-1 = - 9/5

Also, start in one point go straight up or down counting, and then go left or right to the other point counting.

Solve w = 9x + 5 y for y

Answers

Answer:

w-9x/5=y

Step-by-step explanation:

w=9x+5y

subtract 9x from both sides

w-9x=5y

divide by 5y

w-9x/5=y

w = 9x + 5y
5y = w - 9x

divide everything by 5

y= (1/5)w - (9/5)x

Three times the sum of a number and 18 is at least-30

Answers

Answer:

the sum of the number is 16 and it is al least 20 points

solve for x of the given angle ​

Answers

Answer :

<LMN = 125°

<MPQ = 125°

what is ninety two thousand one hundred seventy

Answers

Answer:

92170

I hope it's helps you

Hurry!
The simple meaning of a translation is?
O Slide
O Flip
O Turn
O Change in size

Answers

Answer:

to turn

Step-by-step explanation:

to translate in a simple definition is to turn something of a shape into another form of shape example for you to translate a language into another language in a sentence, you have to turn the letters of that language into the specific language that you want to translate

Please, someone, help

Answers

Answer:

I will help

Step-by-step explanation:

I|I is an integer between 11 and 17

Answers

Yes, there is. It's 14. Hope this helps.

What’s the coordinates pair

Answers

(10, 25) (35, 25)
those are the points on the graph now i’m sorry if it’s not what you were looking for

Answer:

(5, 35) and (25, 20)

Step-by-step explanation:

The question is saying that x = minutes spent watching videos and y = minutes spent playing video games.  Gian has 45 minutes in total to spend.  The equation for Gian spending y minutes playing video games if he spent x minutes watching videos would be 45 - x, since x minutes have been taken away from Gian's 45 minutes by watching videos.  

Knowing this, if he spent 5 minutes watching videos (x) on Monday, that means he spent 40 minutes playing video games.  So, the first coordinate point would go to (5, 40).  On Tuesday, he spent 25 minutes watching videos, which would mean he spent 20 minutes playing video games.  The second coordinate point would go to (25, 20).

the line y=mx+7 is perpendicular to the line y=3/4x-9. what is the value of m?

Answers

Answer:

-4/3

Step-by-step explanation:

In y=mx+b, m represents the slope. In the second line, we are multiplying x by (3/4). This represents the slope of the second line.

To find the slope of a perpendicular line, we take the negative reciprocal of the current slope. In the first line, m represents the slope. The reciprocal of 3/4 is 4/3, and the negative reciprocal of 3/4 is -4/3. This is the value of m

Show how find 42 x 27 using an area number

Answers

Answer:

First break it down

42= 40 & 2

27= 20 & 7

Then times 40 & 20 to get 800

20 x 2 to get 40

40 x 7 to get 280

7 x 2 to get 14

Now add them all together.

800 40 1080

+280 +14 + 54

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

1080 + 54 = 1134

See the picture below for the “area” part of the answer.

say whether each of these statements about square numbers is always true, sometimes true or never true


a the last digit is 5
b the last digit is 7
c last digit is a square number.
last digit is not 3 or 8​

Answers

Assigning answers to statements about square numbers, whether it is always true, sometimes true or never true:

a the last digit is 5 - sometimes trueb the last digit is 7 - never truec last digit is a square number last digit is not 3 or 8​ - never true

What are square numbers?

The term square numbers refers to numbers which are gotten when an integer multiplies itself. It is also called a perfect square. This number type is important in the field of mathematics and always applied.

Example of perfect squares are 4, 9, 16, 25, 36, 49, 64. 91, 100 and so on.

A perfect square will never have 2, 7, 3, or 8 as the last digit hence we can say that:

a the last digit is 5 - sometimes trueb the last digit is 7 - never truec last digit is a square number last digit is not 3 or 8​ - never true

Read more perfect squares here: https://brainly.com/question/26119721

#SPJ1

Write an equation of the circle (6, -3) and radius 12.
This is my answer:
(x-6)^2 + (y+3)^2= 144
Is my answer correct? ^ means exponent

Answers

Answer:

(x-6)^2 + (y+3)^2= 144

Step-by-step explanation:

The equation of a circle can be written in the form

(x-h) ^2 + (y-k) ^2 = r^2 where (h,k) is the center and r is the radius

( x-6) ^2 + ( y--3)^2 = 12^2

(x-6)^2 + (y+3)^2= 144

X¹² - 1 แยกตัวประกอบของพหูนาม

Answers

Answer:

[tex]\left(x^2+1\right)\left(x+1\right)\left(x-1\right)\left(x^2+x+1\right)\left(x^2-x+1\right)\left(x^4-x^2+1\right)[/tex]

Step-by-step explanation:

Factor of [tex]x^{12}-1[/tex] is

[tex]\left(x^2+1\right)\left(x+1\right)\left(x-1\right)\left(x^2+x+1\right)\left(x^2-x+1\right)\left(x^4-x^2+1\right)[/tex]

d is the midpoint of AC.what is the lenght of AB
look above for picture or below​

Answers

Answer:

you would add 3x+2 and 6x-4

9x -2 is the length

Step-by-step explanation:

GENTE PORFAVOR ME AJUDA

Answers

You have asked for help without actually providing what you need help on.

Calculate the area of the triangle.
Note: Think about which side to use as the base.

Answers

9514 1404 393

Answer:

  27 square units

Step-by-step explanation:

The height is measured perpendicular to the base, so it is convenient to use a base such that the height is easily found. Here, the vertical line is a suitable base, as the height is the horizontal distance from that to the opposite vertex.

  A = 1/2bh = 1/2(9)(6) = 27 . . . . square units = triangle area

Simplify an expression for the perimeter of the rectangle.
W = 24.6x - 10.4
L = 7x + 3.1

Answers

The expression for the perimeter of the rectangle is 63.2x - 14.6.

Given that,

Width = W = 24.6x - 10.4Length = L = 7x + 3.1

We Know that

Perimeter of the rectangle is

[tex]= 2(l+w)\\\\= 2 (7x + 3.1 + 24.6x - 10.4)\\\\= 2(31.6x - 7.3)[/tex]

= 63.2x - 14.6

Here the above formula should be applied for measuring the perimeter of the rectangle.

Therefore we can conclude that The expression for the perimeter of the rectangle is 63.2x - 14.6.

Learn more about the rectangle here: brainly.com/question/16167300

Answer:

24.3

Step-by-step explanation:

First you solve the sides:

24.6-10.4 =14.2

7+3.1=10.1

After that ,you will add because perimeter is adding up the side lengths of various shapes.

14.2+10.1=24.3

what is the 30th square number

plz tell the answer​

Answers

Answer:

900

.........................

Answer:

900

Step-by-step explanation:

30 square is like 30×30=900

Multiply 546.1 × 0.52 = ____

Answers

Answer:283.972 is your final answerHope this helps!!! <3

What’s x = in this equation

Answers

Answer:

5m

Step-by-step explanation:

Applying Pythagoras theorem:

a² + b² = c² (where a is base length, b is the height and c is the hypotenuse of the right triangle)

3² + 4² = c²

c² = 9 + 16 = 25

c = x = [tex]\sqrt{25}[/tex] = 5

∴ x = 5m

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