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emwemily
29.08.2021 •
Mathematics
What is the best estimate of the sum of $14.30, $143.08, and $19.74?
A. about $170.00
B. about $187.12
C. about $190.00
D. about $200.00
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Ответ:
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Step-by-step explanation:
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Ответ:
Step-by-step explanation:
According to the information given in the exercise, you know that:
Then, you need to add those fractions in order to solve the exercise.
Notice that the denominators of the fractions are different; so in this case, you need to multiply them in order to find the Least Common Denominator (LCD). This is:
Now, the procedure is:
1- Divide each original denominator by the LCD and multiply the numerators by the quotient obtained.
2- Add the products (This sum will be the numerator).
Then, you get the following result: