In a certain chemical, the ratio of zinc to copper is 3 to 13 . A jar of the chemical contains 585 of copper. How many grams of zinc does it contain?

135 grams of Zinc

Step-by-step explanation:

The ratio of Zinc to Copper in this scenario is 3:13 and in this jar there is 585 of Copper.

Using direct proportion, the grams of Zinc in the jar is:

3        :           13

x        :           585

Cross -multiplying will give:

1,755 = 13x

x = 1,755/13

x = 135 grams of Zinc

answer:   rlly

step-by-step explanation:

x = ± 6i

step-by-step explanation:

x^2 = -36

take the square root of each side

sqrt(x^2) = sqrt(-36)

we know sqrt(ab) = sqrt(a) sqrt(b)

x = ±sqrt(36) sqrt(-1)

we know that sqrt (-1) = i

x = ± 6i