Salma just started a running plan where she runs 16 miles the first week and then increases the number of miles she runs by 5% each week. If she keeps up this plan for 6 weeks, how many total miles would Salma have run, to the nearest whole number?Answer:
Q. Salma just started a running plan where she runs 16 miles the first week and then increases the number of miles she runs by 5% each week. If she keeps up this plan for 6 weeks, how many total miles would Salma have run, to the nearest whole number?Answer:
Identify Initial Amount: Identify the initial amount of miles Salma runs and the weekly percentage increase.Salma runs 16 miles the first week and increases her running distance by 5% each week.Initial miles (a)=16Percentage increase (r)=5% or 0.05
Calculate Total Miles: Calculate the total miles run for each week using the formula for the total distance after a percentage increase: Total miles for week n = Initial miles ×(1+r)(n−1), where n is the week number.Week 1: 16×(1+0.05)(1−1)=16×(1+0.05)0=16×1=16Week 2: 16×(1+0.05)(2−1)=16×(1+0.05)1=16×1.05=16.8Week 3: 16×(1+0.05)(3−1)=16×(1+0.05)2≈16×1.1025≈17.64Week 4: 16×(1+0.05)(4−1)=16×(1+0.05)3≈16×1.157625≈18.52Week 5: 16×(1+0.05)(5−1)=16×(1+0.05)4≈16×1.21550625≈19.44Week 6: 16×(1+0.05)(6−1)=16×(1+0.05)5≈16×1.2767813≈20.41
Add Cumulative Distance: Add the total miles run each week to find the cumulative distance run over the 6 weeks.Total miles = Week 1+Week 2+Week 3+Week 4+Week 5+Week 6Total miles ≈16+16.8+17.64+18.52+19.44+20.41≈108.81
Round Total Miles: Round the total miles to the nearest whole number as the question prompt asks for the answer to be rounded.Total miles rounded = 109 (to the nearest whole number)
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