Answer: violated the Fourteenth Amendment's Equal Protection clause
Explanation:
Plessy claimed the law violated the Fourteenth Amendment's Equal Protection clause, which requires that a state must not “deny to any person within its jurisdiction the equal protection of the laws.” The Supreme Court disagreed with Plessy's argument and instead upheld the Louisiana law.
Answer: 45kg
Explanation:
Since 25% of the ingot consists of zinc, it implies that (100 - 25) = 75% of copper is contained in the ingot.
We then calculate 75% of 60kg to get the amount of kilograms of copper that the ingot of brass contain. This will be:
= 75% × 60
= 75/100 × 60
= 0.75 × 60
= 45kg