2/7
over = 1.6
20 over
r solve for r
not looking for just an answer, would appreciate the formula for solving, thanks
To solve the equation 2/7 = 1.6/r for r, we can follow these steps:
Step 1: Cross-multiply
Multiply the numerator (2) of the left side of the equation by the denominator (r) of the right side, and vice versa. This gives us: 2r = 7 * 1.6.
Step 2: Simplify
Calculate the product of 7 and 1.6: 7 * 1.6 = 11.2. Therefore, the equation becomes: 2r = 11.2.
Step 3: Isolate r
In order to solve for r, we need to isolate it on one side of the equation. To do this, divide both sides by 2: 2r/2 = 11.2/2. This simplifies to: r = 5.6.
Thus, the solution to the equation 2/7 = 1.6/r is r = 5.6.