The teacher separated her class of forty-six students into two groups. One group has 7 more than twice as many students as the other group. Use variable s for the group with less students.

Question

Jorge Pollard

Mathematics

9 July, 09:25

The teacher separated her class of forty-six students into two groups. One group has 7 more than twice as many students as the other group. Use variable s for the group with less students.

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Maci Lamb · Answer 1

X=bigger group

s=smaller group

46=s+x

x=2s+7 1.) Substitute

46=s+2s+7 2.) Single out the variable

39=3s 3.) Divide to remove 3 from s

1/3 (39) = 1/3 (3s)

13=s

46-13=39

x=39

s=13