A room contains 36 chairs arranged in rows. The number of rows is one more than twice the number of chairs per row. Find the number of rows.

Answer:

There’s a 50% chance that any given child is a girl, so take .5 to the 4th power and subtract it from 1, which gives you a 93.75% chance that at least one child is a girl.

Step-by-step explanation:

I don't know if it's correct,

so hope it helps

Answer:If you begin with a 1 gram sample of the isotope, at the end of 1000 years you would have. 1 gram x (12) = 12 gram would remain.

Step-by-step explanation:

Answer

78

Step-by-step explanation:

365- 287 is 78

Answer:

y = (-3/4)x - 2

Step-by-step explanation:

Start with the slope-intercept form y = mx + b.  Replace m with -3/4 and y with -2.  We then have y = (-3/4)x - 2.

Graphing this line:  Knowing that b = -2, plot the point (0, -2).  Find the x-intercept by letting y = 0 in the above equation and solving for x:

0 = (-3/4)x - 2, or (3/4)x = -2, or x = (4/3)(-2), or x = -8/3.  Plot this x-intercept (-8/3, 0).  Finally, draw a line through the points (0, -2) and (-8/3, 0).

Answer:

90+5x+7x+3x+6=360

15x=354-90

15x=264

x=17.6

Step-by-step explanation:

-35+13=-22

61-(-17)==78

Answer:

7/4?? I didn't understand the question.

7/9 < 5/6

We find the LCM of 9 and 6 which is 18.

For the first fraction, 6 multiplied by 3 is 18 so we multiply both the numerator and denominator by 3 to get:

5/6 = 5*3/6*3 = 15/18

For the second fraction, 9 multiplied by 2 is 18 so we multiply both the numerator and denominator by 2 to get:

7/9 = 7*2/9*2 = 14/18

We can see that 5/6 is greater than 7/9.

Answer:

(1/3)^3

Step-by-step explanation:

5^5-8 = 5^-3 (5 to the -3)

= 1/5^3

Answer:$602.23

Step-by-step explanation:

549.98*9.5(.095)=52.248>round nearest cent =52.25

549.98+52.25(tax)= $602.23

Answer:

117

Step-by-step explanation:

10*9=90

3*9=27

90+27=117

This is a easy method to do multipication in mind

Answer:

Absolute value means how far are you from zero on the number line.

absolute value of | -18| for example is 18  

this means that you are at -18 on the number line that is 18 points away from zero.

and absolute value of |18 | is 18

this means that you are at point 18 on the positive direction on the number line. That is 18 points away from zero.

Step-by-step explanation:

Answer:

It will take 15 hours to read a book with 180 pages

Step-by-step explanation:

First, let's set up a ratio to find how many pages she reads per hour:

36:3 = 12:1

Now we can set up fractions to solve:

[tex]\frac{12}{1} =\frac{180}{x}[/tex]

Cross multiply:

[tex]12x=180[/tex]

Divide each side by 12:

[tex]x=15[/tex]

Answer:

3x+4 I think

Step-by-step explanation:

mathaway minus the second a

Answer:

3x+4

Step-by-step explanation:

k12 test

Answer:

[tex]-2\dfrac{3}{5};\dfrac{-9}{4};1.2;\dfrac{7}{4}[/tex]

Step-by-step explanation:

[tex]1.2 , -2\dfrac{3}{5},\dfrac{-9}{4},\dfrac{7}{4}\\\\1.2 ; -2.6 ; -2.25 ; 1.75\\Least \ to \ greatest\\\\-2.6 ; -2.25 ; 1.2 ; 1.75\\\\-2\dfrac{3}{5};\dfrac{-9}{4};1.2;\dfrac{7}{4}[/tex]

Answer:

The original price of the TV was $609.51

Step-by-step explanation:

100% - 21% = 79%

Now the question were really asking here is "475.19 is 79% of what?"

475.19 = 0.79 * x

To get x we must take 475.19 and divide by 0.79, which is about 601.51

The original price of the TV was $609.51

Please mark brainliest if possible, have a nice day!

Answer:

Step-by-step explanation:

Answers:

Length = 13 inches

Width = 11 inches

=====================================================

Work Shown:

w = width, some positive number

w+2 = length, since it is 2 inches more than the width

P = perimeter of the rectangle

P = 2(width + length)

P = 2(w + w+2)

P = 2(2w+2)

P = 4w+4

We're told that the perimeter is 48 inches. So we'll set the previous result equal to 48 and solve for w.

P = 48

4w+4 = 48

4w = 48-4

4w = 44

w = 44/4

w = 11

The width is 11 inches.

w+2 = 11+2 = 13

The length is 13 inches.

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

Checking the answers:

P = 2(L+W)

P = 2(13+11)

P = 2(24)

P = 48

The answers are confirmed.

Answer:

[tex]\dfrac{1}{2}[/tex]

Answer:

1/2 is the answer, i hope it helps

Answer:

697,652

Step-by-step explanation:

Hope this helps! :0

Answer:

697,652

600,000 + 90,000 + 7,000 + 600 + 50 +2 = 697,652

Thats how I sometimes look at it.

Answer:

2a-3

Step-by-step explanation:

Answer

Step-by-step explanation:

Your answer is 200

Hope it helps:)

Answer:

D

Step-by-step explanation:

y = 15 so 2/3 times 15 equals 30/3, which equals to 10

so far, you have 1/5 - 10 = 30

10 plus 30 equals to 40 so basically you have to find what times 1/5 equals to 40

200 times 1/5 is 40

sorry if this is too hard to understand but I tried my best to make it sound easy

Answer:

1 find the value of x graph. i thinks x is 5-3

2 cant help you there.

Step-by-step explanation:

9514 1404 393

Answer:

Step-by-step explanation:

1. Substitute for k(x) and solve.

  k(x) = 6x -12

  15 = 6x -12 . . . . substitute for k(x)

  27 = 6x . . . . . . add 12

  27/6 = x = 9/2 = 4 1/2 . . . . . divide by 6

__

2. Find f(x) = 7 on the vertical scale. Follow that horizontal line over to the graph. Follow the vertical line at that intersection down to the x-axis. It will be halfway between the lines marked 4 and 6. That is, the x-value is 5.

  f(x) = 7 = f(5)

  x = 5

Answer:

6 hours 30 minutes

Step-by-step explanation:

Answer:

-22

Step-by-step explanation:

solve this equation by plugging -4 into x in the equation.

your new equation will look like

f(-4) = (-4)2 + 4(-4) + 2

solve the right side of the equation to get your answer of -22

Answer:

Step-by-step explanation:2.25 miles per hour = 3.621 kilometers per hour

Formula: multiply the value in miles per hour by the conversion factor '1.609344'.

So, 2.25 miles per hour = 2.25 × 1.609344 = 3.621024 kilometers per hour.

Answer:

n = 37/3

Step-by-step explanation:

3n = 30 +7

3n = 37

n = 37/3

Answer:

I agree with orignial

Step-by-step explanation:

1/4+1/4=1/2