Question

Evaluate p(3p - r); where p = 5 and q = -3

A) 90

B) 75

C) 60

D) 45

Answer 1

To evaluate p(3p - r) with p = 5, you substitute 5 into the expression and ignore the r term, resulting in 5 × 15, which equals 75.

Step-by-step explanation:

The student has asked to evaluate the expression p(3p - r) given that p = 5 and r is not provided but assumed to be irrelevant since it was not used in the provided values. To solve this, you substitute the given value of p into the expression.

Step 1: Substitute p = 5 into the expression:

• p(3p - r) = 5(3 × 5 - r)

Step 2: Simplify the expression by first multiplying 3 and 5:

• 5(15 - r)

Step 3: The value of r is missing; however, since the options provided are numerical, the student may be meant to ignore r and just multiply 5 by 15:

• 5 × 15 = 75

Therefore, the correct answer is 75, which corresponds to option B.