The ratio of a compound, by weight, consisting only of substances x, y, and z is 4:6:10, respectively. Due to a dramatic increase in the surrounding temperature, the composition of the compound is changed such that the ratio of x to y is halved and the ratio of x to z is tripled. In the changed compound, if the total weight is 58 lbs, how much does substance x weigh

Answer Posted / steve k

Original ratio 4:6:10

After composition change:

X:4 - 4
Y:6 - 12
Z:10 - 10/3

Total weight = 58 lbs so multiply everything by 3

X: 12
Y: 36
Z: 10

answer X = 12 lbs

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