Problema Solution
Marcie increases the distance she jogs each week by 0.25 mile. If she jogs 3.05 miles in week 7, how far did she jog the fourth week?
Answer provided by our tutors
let
x = the distance Marcy jogged on the first week
on the second week she will jog: x + 0.25
on the third week she will jog: x + 2*025
and do on
on the seventh week she will jog: x + (7-1)*0.25 = x + 6*0.25
x + 6*0.25 = 3.05
by solving we find
x = 1.55
click here to see the step by step solution of the equation
for the fourth week we have
1.55 + (4-1)*0.25 = 2.3 mi
on the fourth week Marcie will jog 2.3 miles.