Question

1. If a = 4, b = 3, and c = 2 then what does (a + b)c equal?

2. Write an algebraic expression for a number k minus 8.

3. A person can find the approximate number of pints of blood in his or her body by dividing his or her weight by 16. Write an algebraic expression to describe this relationship.

Answer 1

1. Just substitution
(a+b)c = (4+3)*2=7*2=14

2. Number k minus (-) 8 is (k-8).

3. Number pints of blood is N.
Weight is W.
Number of pints of blood (N) in his or her body by dividing his or her weight (W) by 16.

N = W : 16