An alloy of tin is 18% tin and weighs 30 pounds. How many pounds of tin are in the alloy?

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Answer 1 · 2018-04-22T18:42:54

#5.4# pounds

the alloy of tin is #18%# tin. this means that #18%# of the alloy is tin.

the total weight of the alloy is #30# pounds. the weight of the tin is #18%# of this.

#18% = 18/100#

this means that #18%# of #30# is the same as #18/100 * 30#, or #0.18 * 30#

#0.18 * 30 = 5.4#

#18%# of #30# is #5.4#

this means that #18%# of #30# pounds is #5.4# pounds.

therefore, #5.4# pounds of tin can be found in #30# pounds of the alloy.