Science
Junior High
Resolved
中1です。濃度の問題で、写真の答えであっているでしょうか？
濃さ%食塩0gに
ち0g)iと、濃さは
何%になりますが
150×0.2-30食塩 30g
150+50= 200 全体200g
W0
x1o0=
2
30
200
15
30
三 I5
15%
2
70
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