Question

What is 75% of 400? Write and evaluate an expression to find the answer. Then explain how to use the model to justify the answer.

Answer 1

The 75% of 400 is 300.

SOLUTION:

Given, 75% of 400.

We have to Write and evaluate an expression to find the answer. Then we have explain how to use the model to justify the answer.

Now, let x and y be any two numbers such that, 0 ≤ y ≤ 100

`\text { Then, } y \% \text { of } x \text { will be equal to } (y)/(100) * x`

Now, let us substitute the given values in above expression.

`x=400 \text { and } y=75 \rightarrow (75)/(100) * 400=75 * 4=300`

We have to do the same procedure for any given values.

Hence, the 75% of 400 is 300.