Question

R/5 = 4/7 solve for r

Answer 1

`\large\boxed{R = 2 (6)/(7)}`

Explanation:

R/5 = 4/7

Cross-multiply (numerator * opposite denominator = numerator * opposite denominator)

R(7) = 5(4)

Multiply

7R = 20

Divide both sides of the equation by 7

R = 20/7

Simplify

`\large\boxed{R = 2 (6)/(7)}`

Hope this helps :)