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2.51 + 1/2 + 1 17/20 is your answer :))

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Try not to post too many questions at once. 

And be sure to thank the answerer :DD

1 5/6 + 1 1/3 = 3 1/6

3 1/6 * 60 = 190

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The smallest positive integer =3 * 5 ==15, so that:

2^2 . 3^4 . 4^4 . 5^6 . 6^6 ==60,466,176,000,000 is a perfect square. Its sqrt =7,776,000

If 1/5 ARE immigrants , then the rest, 4/5 are NOT immigrants

4/5 * 40 == 32 students are NOT immigrants

3 dozen / 5 people   =   3/5 dozen per person

10+15+5=30 cups of lemonades

30*0.25= $7.5

No.... I meant 15/2    THIS question says the pizza is 15 inches  .... not 16 inches.

A pizza has a diameter of 15 inches. If the pizza is cut into 6 equal pieces, what will be the area of each piece?

Thx :)

First let's find how many people ordered breakfast and how many people ordered drive through.

Breakfast = 3/10 * 100 = 30 people

Drive through = 2/5 * 70 (remaining people) = 28

Now we know that 28 + 30 people ordered either drive through or breakfast, or 58 people did.

Now we can subtract 58 from 100:

100 - 58 = 42

So, 42 people ordered desert.

Hello :))

welcome to web2.0calc

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1/10=10

10/10-3/10=7/10=70

2/5 x 70 = 28

70-28=$\boxed{42}$

1/3 left on saturday

1/6 left on wednesday.

30*1/6 = 5

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This question is a two part question, so let's start solving the first part.

First, let's find 2/3 of the book that is 30 pages long. This isn't too hard to find:

2/3 * 30 = 20

Now that we know he read 20 pages, we know that there are 10 pages left to read. Because Clay read 1/2 of the remainder of the book on Wednesday, we know that he read five pages.

Now we can add 20 and 5 to get 25 pages. This is the number of pages that Clay has read.

So, we know that the answer is equal to:

30 - 25 = 5

So, he has 5 pages left to read.

B(2, 3)

y = -1

3--1 = 4

-1-4 = -5

(2, -5)

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You didn't give us any choices (the question says "which of the following") but I'm going to try and answer it anyways.

First of all, I need to address a mistake in the question that may lead to my giving the wrong answer. The question states that Grant has only one cup of ice cream in a bowl, then removes two cups to share. If this is a trick question, you have your answer, but I'm going to assume that this is a mistake and the he just has a bowl of ice cream.

So, if we make variables for the two things we need to solve this:

Bowl = b

Cup = c

We can easily make an expression that solves the question.

The expression that best explains the amount of ice cream left in Grant's bowl is:

b - 2c

Hope this helps :)

Let's make this into an algebraic equation.

x is the bigger number and y is the smaller one.

y = x * 0.90

x + y = 95

From solving this system of equations, we get:

x = 50

y = 45

Now, from this, we need to find the difference between the two numbers. This isn't that hard:

50 - 45 = 5.

So, the difference between the two numbers is 5.

For this question, you don't have to have any formula for finding the area of the ring, all you need to do is subtract the area of the smaller ring from the bigger one.

So, let us figure out the areas of each of the circles.

C₁ = pi*r^2 = pi * 8^2 = 64pi

C₂ = pi*r^2 = pi * 10^2 = 100pi

Now that we have the two areas, we can subtract C₁ from C₂ to get our final answer.

Therefore:

C₂ - C₁ = 100pi - 64pi = 36pi

So, the area of the ring between these two circles is 36pi.

The area of large circle is 100pi (pi*10^2)

The area of short circle is 64pi (pi*8^2)

100pi-64pi = 36pi

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1/16*6 = 6/16 = 3/8

5/8 left. 

5/8*10.5 = 6.5625

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10 1/2 * 16 = 21/2 * 1/16 = 21/32

21/32 * 6/1 = 12/32

126 / 32 = 3

8/16 + 16/16 = 24/16

10 1/2 - 3 15/16 = 6 9/16

I think you might have meant 16/2, and not 15/2, because the pizza has a diameter of 16, not 15, inches....

(7/2)^2$\cdot$3.14 = 49/4$\cdot$3.14

                               = 153.86 / 4

                               = 38.465

rounded:

$\boxed{38}$ ft$^2$

 If a clock has a large hand 10 cm long, how far does the tip of this large hand travel in 12 hours?

in 12 hours, the minute hand moves 12 circle exactly.

radius=10

circumference=2r$\pi$=2$\cdot$10$\cdot\pi$=20$\pi$

20$\pi\cdot$12=$\boxed{240\pi}$

\(\quad\dfrac{\sqrt 2}{\sqrt 2 + \sqrt 3 - \sqrt 5} - \dfrac12\\ = \dfrac{\sqrt2 \left(\sqrt2 + \sqrt 3 + \sqrt 5\right)}{(\sqrt 2 + \sqrt 3)^2 - \sqrt5^2} - \dfrac12\\ =\dfrac{\sqrt 2 \left(\sqrt 2 + \sqrt 3 + \sqrt 5\right)}{2\sqrt 6} - \dfrac12\\ = \dfrac{\sqrt 2 + \sqrt 3 + \sqrt 5}{2 \sqrt 3} - \dfrac{\sqrt 3}{2\sqrt 3}\\ =\dfrac{\sqrt 2 + \sqrt 5}{2 \sqrt 3}\\ = \dfrac{\sqrt 6 + \sqrt{15}}{6}\)