Answer:
41
Explanation:
we are given the number of students in Maddy's class, 31, the problem also says that Maddy's class is 10 less than Doris's class. So, to solve we make an equation with the information provided:
31+10= 41
the answer is 41
Maddy's class has 10 less so X-10=31
31+10=41 so 41 is your answer :)
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