tywower tywower

02-12-2017
Mathematics

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MY LAST QUESTION HELP ME!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

An alloy is a mixture of metals. Suppose that a certain alloy is made by mixing
50 grams of an alloy containing 12% copper with 78 grams of an alloy containing 92% copper. Answer the questions below. Do not do any rounding.

a) How many grams of copper are in the resulting mixture?

b) What percentage of the resulting mixture is copper?

Respuesta :

zayaortiz6 zayaortiz6

02-12-2017

a- the grams of copper is total which is 128 grams.*** b- is the total amount of percent of copper which is 71.76%+9.37

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