2 years ago

How may shells does Joshua have?

Mathematics

2 answers:

Nikitich [7]2 years ago

6 0

Joshua has 12 shells

k+ j=54
k +(k-30)=54
k+k=84
2k=84
k=42

j=k-30
j=42-30
j=12

double check
12+42= 54!!

Tpy6a [65]2 years ago

5 0

24, since 54-30 is 24, and 30+24 is 54.

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