How do you solve #\frac { 21} { 56} = \frac { x } { 7.2}#?

Question

412 views around the world

You can reuse this answer
Creative Commons License

Answer 1 · 2018-05-18T18:33:58

#x = 2.7#

#21/56 = x/75#

By cross multiplying the above, you should have;

#21 xx 7.2 = x xx 56#

#151.2 = 56x#

Dividing both sides by the coefficient of #x#

#x = 151.2/56#

#x = 2.7#