3 - 2x = 4
let the number of miles biked by marcus be x , then jenny biked 3 miles less than marcus therefore it will be 3 - x therefore the total miles for jenny will be 3 - x = 4
Marcus biked 3.5 miles.
Step-by-step explanation: To determine how many miles did Marcus bike, we need to write an equation that expresses the given data, we know that Jenny biked 4 miles, and that number needs to be 3 miles less than twice the distance that Marcus biked so:
x is the number of miles that Marcus biked:
2x-3=4 (twice the distance Marcus biked, minus 3 miles, equals the distance Jenny biked)
now, we isolate the x:
Option (B) 4 = 2x - 3
Let distance travel by Marcus be "x" miles
Then, according to question
Distanced travelled by Jenney will be
twice of "x" minus 3.
Distance travelled by Jenny = 2x - 3.
Also, it is given that Jenny has travelled 4 miles.
then, 4 = 2x - 3. So, here option (B) is the correct option.