sparkio

SirAkko, I really like your explanation! Not only did you tell why you did things, you also provided explanations to certain vocabulary in case the person asking the question didn't know, such as telling ratios are also fractions and difference is the same thing as subtraction. Thanks for some insight on how I should answer questions thoroughly and explain to others.

Just making the ratio to the original thing.

5+4 = 9

18/9 = 2

10:8

a. 10-8 = 2 dollars

b. 8 dollars.

Thanks! That helped.

If it were full, yes. But the box you have if half empty, so just divide 72 by 2. CPhill has already given the answer.

I'll give you a hint. A trapezoid is made up of 2 triangles and a square. Simply find the area of them and add them together.

This is some of the simplest math you can learn. The article I sent you gives a full explanation on it, yet you refuse to read it. I have no other solutions for you.

mathsisfun.com/algebra/trig-area-triangle-without-right-angle.html

https://www.mathsisfun.com/cuboid.html

This is the only answer you are going to get. https://www.mathsisfun.com/algebra/trig-area-triangle-without-right-angle.html

https://www.mathsisfun.com/algebra/trig-area-triangle-without-right-angle.html

Let's say x represents your number.

(4 * x - 4)* 1/3 = -6.

4 * x - 4 = -18

4 * x = -14

x = -3.5

Your number is -3.5

https://www.mathsisfun.com/algebra/trig-area-triangle-without-right-angle.html

13 * 16.4 * 1/2 = [answer]

https://www.mathsisfun.com/algebra/trig-area-triangle-without-right-angle.html