Question

checkpoint - area of rectangle and related mult/division equalities
look at the rectangle below:
it has 4 rows with 5 squares in each row. we can write a multiplication equality 4 - 5 = 20
which of the answer choices below would be correct division equalities related to this multiplication?
20 ÷ 5 = 4
4 ÷ 20 = 5
5 ÷ 4 = 20
5 ÷ 20 = 4
20 ÷ 4 = 5
none of the above.
question help: message instructor

Explanation:

Step1: Recall multiplication - division relationship

In a multiplication equation \(a\times b = c\), the related division equations are \(c\div a = b\) and \(c\div b=a\). Here \(a = 4\), \(b = 5\) and \(c = 20\) from \(4\times5=20\).

Step2: Identify correct division equations

For \(4\times5 = 20\), the correct division equations are \(20\div5=4\) and \(20\div4 = 5\).

Answer:

\(20\div5 = 4\), \(20\div4 = 5\)