CalTheGreat

Take a look at this: https://web2.0calc.com/questions/please-help-as-soon-as-possible-geometry 

which shows the answer for a 15-gon. Maybe it will help you understand!!!

Take a look at https://web2.0calc.com/questions/please-help_7172

Hope this helped!

Nice, EP!

Hint: Here are the equations

Let x=nickels

      y=dimes

      z=quarters.

5x+10y+25z=875

x+y+z=51

x+y+3=z

Hope this helped!

Yeah, this is unreadable.

If we work this out on a graph, we will get v=3t/2.

Also, we can find a unit rate. When v=1, what will the equation be? 

Hope this helped!

Let's say 

x=larger number

y=smaller number

We can write two equations.

x+y=63

x-y=19

Let's use the elimination method to get rid of the y. We will add these equations.

2x=82

x=41.

Since x+y=63, we know that y=22.

Our final answer is

x=41

y=22

LOL! Nice job. Just be sure to post only when you are sure you cannot solve this problem! 

A: If one angle in a parallelogram is 90 degrees, that means the rest have to be 90 degrees. Therefore, this is TRUE.

B: A rectangle already has perpendicular sides, and a rectangle can't be a square. Therefore, this is FALSE.

C. A rhombus is a square. This is TRUE.

D. A rhombus is a square. This is TRUE.

E. The sides of a parallelogram are different, as well as a rectangle. This is FALSE.

The answer is A, C, and D.

Okay... here's a hint!

The formula for inverse proportion is y=k/x. Plug in x and y with the value given, and then find k.