Why are the solutions to the proportions StartFraction 40 over 8 EndFraction = StartFraction x over 10 EndFraction and StartFrac
2 answers:
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The <em>correct answer</em> is:
1 3/4
Explanation:
We read 1.75 as "one and 75 one-hundredths." This tells us that it can be written as:
To simplify the fraction, we see that 25 goes into the numerator and denominator. We divide both by 25:
The simplified answer is 1 3/4.
Absolute value of 7. Any real numbers in the absolute sign would equal to the positive value.
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If we substitute x = 7 in. Answer by using the definition of absolute value. Note that we only substitute x = 7 in x and not -x since 7 is greater than 0 and not less than 0.
You may also be wondering what will happen if we substitute x = any negative numbers.
Because -7 is less than 0. We substitute in -x and not x. This is the definition of absolute value. But to understand it easily, any numbers in absolute value have to equal to their positive value.
Conclusion
- |7| means the absolute value of 7.
- |7| is 7.
- |x| is x when x ≥ 0 but -x when x < 0
Let me know if you have any doubts regarding the absolute value through comment!