A microwave oven costs $124.85 before it is marked down. If it is marked down by 63%, what is its new price, to the
2 answers:
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Answer:
Third option.
Step-by-step explanation:
For this exercise you need to remember one of the properties for exponents.
There is a property called the "Negative property of exponents" which states the following:
Where
As you can observe, is the reciprocal of
In this case you have the following expression given in the exercise:
Observe the expression. As you can notice, the base "n" has a negative exponent, which is -6.
Therefore, applying the Negative property of exponents explained at the beginning of this explanation, you can simplify the expression.
Then, the simplified form of is the one shown below:
Answer:
4 miles
Step-by-step explanation:
<u>Walking:</u>
Distance = d miles
Rate = 4 mph
Time = t hours
<u>Biking:</u>
Distance = d miles
Rate = 10 mph
Time hours (convert minutes to hours)
Hence,
Therefore, the distance to friend's house is
and the total distance of the round trip is