Question

What is the answer, Please Help.

Answer 1

r=144

Explanation:

We need to find r. To do that me must make the top numbers the same.

We'll multiply

`(12)/(r) * (5)/(5 ) = (60)/(5r)`

`(5)/(60) * (12)/(12) = (60)/(720)`

Since the top numbers are equal that means the bottoms are too.

So we can create the equation:

`5r = 720`

Divide each side by 5

r=144

Hope this helps! If you have any questions on how I got my answer feel free to ask. Stay safe!

Answer 2

r=144

Explanation:

Cross multiply:

12 * 60 = r * 5

Simplifying

12 * 60 = r * 5

Multiply 12 * 60

720 = r * 5

Reorder the terms for easier multiplication:

720 = 5r

Solving

720 = 5r

Solving for variable 'r'.

Move all terms containing r to the left, all other terms to the right.

Add '-5r' to each side of the equation.

720 + -5r = 5r + -5r

Combine like terms: 5r + -5r = 0

720 + -5r = 0

Add '-720' to each side of the equation.

720 + -720 + -5r = 0 + -720

Combine like terms: 720 + -720 = 0

0 + -5r = 0 + -720

-5r = 0 + -720

Combine like terms: 0 + -720 = -720

-5r = -720

Divide each side by '-5'.

r = 144

Simplifying

r = 144