Question

what is rate formula​

Answer 1

Many everyday problems involve rates of speed, using distance and time. We can solve these problems using proportions and cross products. However, it's easier to use a handy formula: rate equals distance divided by time: r = d/t.

Answer 2

$\bigstar{\underline{\boxed{\green{\sf{R = \bigg(\dfrac{S.I \times 100}{P \times \: T }\bigg)}}}}}$