Question 1083501

{{{(72+59+93+73+x)/5=72}}}

{{{72+59+93+73+x=72*5}}}

{{{297+x=360}}}

{{{x=360-297}}}

{{{x=63}}} 

he need {{{63}}} on his next test so that his average (mean) is {{{72}}}

check:

{{{(72+59+93+73+x)/5=72}}}

{{{(72+59+93+73+63)/5=72}}}

{{{360/5=72}}}

{{{72=72}}}