Question

Define a variable, using let statements, set up an equation, then solve. Roger has two golden retrievers, Sadie and Buddy. Buddy weight 14 pounds more than Sadie. if their total weight is 136 pounds how much does Sadie weight?

Answer 1

Sadie and Buddy

Saddie = s

Buddy = b

s + b = 136 Equation 1

b = s + 14 Equation 2

Solve for s

Substitution method

s + (s + 14) = 136

s + s + 14 = 136

2s = 136 - 14

2s = 122

s = 122/2

s = 61

Saddie weights 61 pounds

Buddie weights = 61 + 14

= 75 pounds

Result

Sadie weights 61 pounds