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
The following must occur before an <u>underage individual</u> can participate in the research study:
- the parent/legal guardian must give permission for the minor to participate.
- the minor must agree to participate in the research.
<h3>What is a research study?</h3>
This refers to the systematic, rigorous and critical investigation that aims to answer questions.
Any research participant that is above 18 years is considered a non-minor and can participate in any kind of research study without seeking consent from guardians/parents.
Read more about research study
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Answer: I think the answer is all of the choices
Explanation:
Answer:
Over five million people are under the supervision of the criminal justice systems in the United States. Approximately, 1.6 million are incarcerated in local, state, and federal institutions. The remaining, or almost 70 percent of those under the responsibility of the criminal justice system, are being supervised in the community on probation or parole.
