Asked by shynice

i know the answer its b but how i explain
212 to x and 7 to 10
a.24
b.30
c.40
Answered by shynice
212 is wrong its supposed to be 21
Answered by Ms. Sue
Explain it the same way we showed you a few minutes ago.

Answered by shynice
okay im explain tell me if im doing it wright
Answered by shynice
ms.sue
Answered by Damon
21/x = 7/10 ?

multiply both sides by 10 x

21 * (10 * x)/x = 7 * (10 * x)/10

210 = 7 x

x = 210/7
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