Lieutenant james made an average of 3 arrests per week for 4 weeks. How many arrests does she need to make in the fifth week to raise her average to 4 arrests per week
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3 arrests per week
then no. of arrests per 4weeks is
3*4=12
let it be equation 1
let no. of total arrests in 5 weeks be x
then
4=x/5
x=4*5
=20
no of arrests done in 5th week=20-12
=8
therefore she should do 8 arrests
then no. of arrests per 4weeks is
3*4=12
let it be equation 1
let no. of total arrests in 5 weeks be x
then
4=x/5
x=4*5
=20
no of arrests done in 5th week=20-12
=8
therefore she should do 8 arrests
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