Chapter 4.6, Problem 8PPS

To determine

To translate: the given sentence into an equation.

Answer to Problem 8PPS

The required equation is $9n-20=7$

Explanation of Solution

Given:

The product of a number and 9, less 20 is 7.

Calculation:

Let the number be n.

In the sentence ‘Less 20’ means subtract 20 from something.

And ‘The product of number and 9’ is $9n$ .

The product of a number and 9, less 20 is $9n-20$ .

The equation of the sentence “The product of a number and 9, less 20 is 7” is as follows:

  $9n-20=7$

Hence, the required equation is $9n-20=7$

Conclusion:

Hence, the required equation is $9n-20=7$