Question:
Fernando evaluated the expression below.
What was Fernando's error?
- Fernando evaluated the numerator of the fraction incorrectly.
- Fernando simplified 20/2 incorrectly.
- Fernando incorrectly found the product of –2 and –5.
- Fernando evaluated (-3)² incorrectly.
Answer:
- Fernando incorrectly found the product of –2 and –5.
Explanation:
Given
Required
Spot the error
The error in this evaluation is the product of -2 and -5 at step 2
When a negative number (-2) is multiplied by a negative number (-5), the outcome of the multiplication is always a positive number (10).
So, the result of -2 * -5 is 10 but Fernando incorrectly calculated it as -10.
Solving the expression, correctly
Hence, the actual result of the expression is 29 (not 9 as calculated by Fernando).
Child labor was commonly used in the first industrial revolution. The laborers, at that time, needed to work many hours nonstop. Even so, it was not enough, and these workers made their children work too so the family could sustain itself.
Of course, the abuses committed by those employers were stopped, and many laws were made to prevent them. One of these laws was the Fair Labor Standards Act (FLSA).
FLSA is a law that creates limits to child labor, it also forbids this type of work in some circumstances. Under sixteen years old, children have several restrictions to be allowed to work, and under eighteen years old they had fewer restrictions, but could not exercise what everything an adult could, for example, work in a hazardous environment. However, agricultural work was not included in the FLSA, <u>and a good lot of the children worked in this job which was not limited and child labor could inadvertently be used.</u>
Even with FLSA, child labor continues to exist illegally, and its horrors continue to prevent children from having a decent childhood. That is, the youth protection must leave the law papers and assure effectively the childhood safety.
<u>This protection is extremely important, and the rollback of child labor must be avoided when hazardous to their healthy growth – both body and mind.</u>
Plastic, oils from boats, air pollutants.
