Solved on Sep 19, 2023
Evaluate the given expressions for the specified variable values: a) where , b) where .
STEP 1
Question: What is the expression given for part a) and what is the value of variable r?
A) 3r + 2r + 1; r=7
B) 3r + 2r + 1; r=4
C) 6s + 4 - s; s=7
D) 6s + 4 - s; s=4
Answer: A) 3r + 2r + 1; r=7
STEP 2
Question: Substitute r=7 into the expression 3r + 2r + 1. What do you get?
A) 3(7) + 2(7) + 1
B) 3(4) + 2(7) + 1
C) 3(7) + 2(4) + 1
D) 3(7) + 2(7) + 4
Answer: A) 3(7) + 2(7) + 1
STEP 3
Question: Perform the multiplication operations in the expression 3(7) + 2(7) + 1. What is the result?
A) 14 + 21 + 1
B) 21 + 14 + 1
C) 21 + 14 + 7
D) 21 + 2 + 1
Answer: B) 21 + 14 + 1
STEP 4
Question: Perform the addition operations in the expression 21 + 14 + 1. What is the result?
A) 36
B) 35
C) 34
D) 33
Answer: A) 36
STEP 5
Question: Substitute s=4 into the expression 6s + 4 - s. Perform the operations. What is the result?
A) 28
B) 26
C) 24
D) 22
Answer: C) 24
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