SOLUTION: nika jogged 4 1/10 miles on monday, 2 2/5 miles on tuesday and 3 1/2 miles on friday. how many more miles does she have to jog to reach her weekly goal of 12 1/2 miles?

Algebra ->  Numeric Fractions Calculators, Lesson and Practice -> SOLUTION: nika jogged 4 1/10 miles on monday, 2 2/5 miles on tuesday and 3 1/2 miles on friday. how many more miles does she have to jog to reach her weekly goal of 12 1/2 miles?      Log On


   

Question 542526: nika jogged 4 1/10 miles on monday, 2 2/5 miles on tuesday and 3 1/2 miles on friday. how many more miles does she have to jog to reach her weekly goal of 12 1/2 miles?
Answer by JBarnum(2146) About Me  (Show Source):
You can put this solution on YOUR website!
4*10+1=41 41/10
2*5+2=12 12/5
3*2+1=7 7/2
12*2+1=25 25/2
%2841%2F10%29%2B%2812%2F5%29%2B%287%2F2%29%2B%28x%29=%2825%2F2%29 find common denom and multiply it to everything (10)
do cancelations
41%2B12%282%29%2B7%285%29%2B10x=25%285%29multiply
41%2B24%2B35%2B10x=125 add
100%2B10x=125subtract 100
10x=25divide by 10
x=2.5or x=5%2F2or x=21%2F2