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Serggg [28]
3 years ago
11

A pair of shoes that normally costs $75 is on sale for $55. What is the percent decrease in the price, to the nearest whole perc

ent?
Mathematics
2 answers:
Nat2105 [25]3 years ago
8 0
I think it would be 15%
stellarik [79]3 years ago
3 0
So you subtract 75-55=20 then you divide 20/75 and you get the answer of .26 then you make the decimal into a percent making it 26%
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Step-by-step explanation:

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2 years ago
An architect is making a model of a building she is designing. The kitchen will be 8 feet by 14 feet. The scale she is
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Answer:

12 inches by 21 inches

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6 0
2 years ago
The range is the set of
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Answer:The range of a set of data is the difference between the highest and lowest values in the set.

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7 0
3 years ago
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8 0
3 years ago
Read 2 more answers
In your lab, a substance's temperature has been observed to follow the function T(x) = (x + 5)3 + 7. The turning point of the gr
kompoz [17]
A turning point occurs when the velocity is equal to zero, but the acceleration is not equal to zero. 

t(x)=(x+5)^3+7

dt/dx=3(x+5)^2

d2t/dx2=6(x-5)

dt/dx=0 only when x=-5

However, since d2t/dx2(-5)=0, this point is an inflection point, not a turning point.

So there is no turning point for this function.

Now in this problem, it is even easier than the above to show that there is no turning point.  A turning point by definition is when the derivative or velocity changes sign.  Since in this case v=3(x+5)^2, for any value of x, v≥0, and thus never becomes negative, so it never changes from a positive to negative velocity because velocity in this instance is a squared function.


8 0
3 years ago
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