Answer:
22) 119
24) 15
Step-by-step explanation:
22) 61 + b = 180 <-- supplementary because on the same line
b = 119 <-- subtracted 61 from both sides
24) 87 + (6x + 3) = 180 <-- supplementary because on the same line
87 + 6x + 3 = 180 <-- take out parantheses
90 + 6x = 180 <-- add like terms
6x = 90 <-- subtracted 90 from both sides
x = 15 <-- solve for x by dividing 6 from both sides
Sydney would arrive one hour before Nathan. 24/12=2 and 24/8=3
S = Sally's age
J = Jim's age
S = 2 + 3j Plug in 4 for j
S = 2 + 3(4) Multiply
S = 2 + 12 Add
S = 14
Sally is 14 years old.
