lennoxlee0718
contestada

Leo found a metal bar that containment 284 grams of copper. After some tests, he determined that the bar was 80% copper. What was the total weight of the metal bar in grams?

Respuesta :

lukyo
Let x be the total weight of the metal bar.

According to the given information, you have

80 % of x = 284

(80/100) * x = 284

80x = 100 * 284

80x = 28,400

x = 28,400/80

x = 355 grams <----- this is the answer.


I hope this helps. =)

Otras preguntas