Question

Define a variable, using let statements, set up an equation, then solve. Mark flew from Boston to Baltimore, then Baltimore to Orlando. the number of people on his first flight was five more than four times the number of people on his second flight. if there were 365 people altogether on the two flights how many were on the flight from Baltimore to Orlando?

Answer 1

First flight = f

second flight = s

Equations

f + s = 365 Equation 1

f = 4s + 5 Equation 2

Solve by substitution

(4s + 5) + s = 365

4s + 5 + s = 365

5s = 365 - 5

5s = 360

s = 360 / 5

s = 72

Find f

f = 4(72) + 5

f = 288 + 5

f = 293

Result

In the flight from Baltimore to Orlando there were 72 people.