How do you solve #x/900 = 3.5/15#?

Question

1649 views around the world

You can reuse this answer
Creative Commons License

Answer 1 · 2018-03-29T18:47:56

#x=210#

#x/900 = 3.5/15#

You would cross multiply and get;

#15 xx x = 900 xx 3.5#

#15x = 3150#

Then divide by #15# on both sides;

#(15x)/15 = 3150/15#

#(cancel15x)/cancel15 = 3150/15#

#x = 3150/15#

#x=210#

Answer 2 · 2018-03-29T19:31:39

#x=210#

#x/900 = 3.5/15# (Multiply both sides by 900 to isolate the variable)

#x=3.5/15 *900# (15 is a factor of 900, so you can reduce 900 to 60 and 15 to 1)

#x=3.5*60#

#x=210#

Check the answer by plugging it into the original equation:

#210/900 = 3.5/15#

#0.23=0.23#