Question

In one month Vivian earned $800 at her part-time job, and $50 was withheld for federal income tax. Suppose she earns $1200 next month. How much will be withheld for federal income tax?

Answer 1

Let's use a rule of three:

Therefore,

$x=\frac{1200\cdot50}{800}\rightarrow x=75$

We can conclude that $75 will be withheld for federal income tax.