Chapter 1, Problem 13MCQ

Solution

To find: algebraic expression for the given situation.

The required algebraic equation is $2st-10$

Given:

Situation: ten less than twice the product of s and t

Calculation:

From the phrase “ten less than”, it implies that the algebraic expression includes subtraction.

From the situation the it is implying that the value of expression would be less that “twice the product of s and t”.

Hence, start with the product of $s$ and $t$ which is $st$ .

Then, multiply it by $2$ to get product of twice of s and t (the twice than):

  $2\times st=2st$ ,

Expression for “ten less than twice the product of s and t” is obtained by subtracting $10$ from $2st$ ,

So, the final required expression is $2st-10$

Conclusion:

Algebraic expression is $2st-10$