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It is just the least common multiple (LCM) you are looking for!

Let's check 10 first. 10 x 1 = 10. And this isn't divisible by 4 to make a whole number. 

So let's check the next one for 10! 10 x 2 = 20. This IS divisible by 4 to make a whole number! 20 / 4 = 5!

So Mary sold 5 boxes of cookies to get to $20 and Henry sold 2 boxes of cookies to get to $20!

$20 is the answer!

Subtracting 1/2 from both sides of the equation givesTaking the reciprocal of both sides of  gives .

\[\frac1x = \frac56-\frac12 = \frac13. \]

Taking the reciprocal of both sides of 1/x=1/3 gives x= 3

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Sorry, wrong question... Don't need help on this one!!!

Thanks super helpful! I think I was not doing the decimal points in the answer.

I don't think it was meant to be that complicated asinus

Simplify as follows: 

\(10 x - y = 2\)

\(-y = 2 - 10x\)

\(y = -2 + 10x\)

The slope is the coefficent of x, or \(\color{brown}\boxed{10}\)

Hello Guest!

The slope of the line represented by the equation 10x − y = 2 is arctan 10 = 84.289°.

  !

Hi Grace,

3cm = 500feet

so

1cm= 500/3 feet

so

3.5cm = 500/3  *  3.5  feet

Make sure you understand then you can finish it.

That's pretty easy, are you sure you need help with that, all the numbers cancel each other out.

Oh, I guess I thought it was just 180..........guess I'm not a really good student lol

What is the total sum of all interior angles in a Pentagon? Look it up in your Geometry Textbook !! Once you know that, then it is a matter of adding and subtracting!.

To divide the problems first you have to have two fractions so you put 16 over 1. Then an easy thing to remember is kcf which stands for keep change flip. You keep 2/3, change the / to x, and flip the 16/1 to 1/16 then you x.  so you have 2 x1 and 3x16. So you get 2/48. Then you can simplify this to 1/24 by dividing both the numbers by 2.

This site:

(1001, 2002, 3003, 4004, 5005, 6006, 7007, 8008, 9009) >>Total = 9 such palindromes.

There are 3680 ways.

The equation f(x) = f(-x) has four solutions.

553=265+48t
t=6

Explanation:

Let R be the repair bill
Let P be the cost of parts
Let L be the labor cost

R=P+L

R=553
P=265

553=265+L

Let t be the labor duration
Let r be the labor rate

L=rt

r=48

⇒L=48t

553=265+L

⇒553=265+48t
⇒288=48t
⇒t=6

The side will be the length of the segment connecting the two vertices of the triangles. 

This is a triangle with one angle of 120 degrees and 2 sides of 2. 

By the Law of Cosines, the side of the square is \(\sqrt{2^2 + 2^2 - 2 \times 2 \times 2 \times \cos (150)} = {\color{brown}\boxed{\sqrt{8 + 4 \sqrt 3}}} \approx {3.864}\)

\(x^3 - 150 = 6709\)

\(x^3 = 6859\)

\(x = \color{brown}\boxed{19}\)

You should always upload the picture. If you don't know how, then learn from the instructions on this site. See the answer and the uploaded picture here:

https://web2.0calc.com/questions/find-the-area-of-the-larger-square