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xxTIMURxx [149]
3 years ago
5

Last year, sales at a book store increased from $5,000 to $10,000. This year, sales decreased to $5,000 from $10,000. What perce

ntage did sales increase last year? What percentage did sales decrease this year?
Sales increased ____ last year, from $5,000 to $10,000. When sales dropped from $10,000 to $5,000 this year, sales decreased ______.
Mathematics
1 answer:
suter [353]3 years ago
5 0

Sales increased 50% last year, from $5,000 to $10,000. When sales dropped from $10,000 to $5,000 this year, sales decreased 50%

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labwork [276]

a equals 16. You multiply both sides be -10 and then you add 6.

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3 years ago
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HELP!!!!! U GOTTA DO THIS PLS
salantis [7]

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60 almonds?

Step-by-step explanation:

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3 years ago
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A researcher is interested in estimating the mean weight of a semi tracker truck to determine the potential load capacity. She t
uranmaximum [27]

Answer:

The degrees of freedom associated with this problem are 16.

Step-by-step explanation:

The degrees of freedom associated with a problem, independent of the confidence level, is the sample size subtracted by 1.

In this problem, we have that:

She takes a random sample of 17 trucks, so the sample size is 17.

This means that the degrees of freedom associated with this problem are 16.

4 0
4 years ago
use the intermediate value theorem to determine whether the following equation has a solution or not x^3-3x-1
xxTIMURxx [149]

Answer:

Yes, this equation has a solution. According to Intermediate Value Theorem at least one solution for [0,2]

Step-by-step explanation:

Hi there!

1) Remember a definition.

Intermediate Value Theorem:

If f is continuous on a given closed interval [a,b], and f(a)≠f(b) and f(a)<k<f(b) then there has to be at least one number 'c' between 'a' and 'b', such that f(c)=k

----

(Check the first graph as an example)

2) The Intermediate Value Theorem can be applied to determine whether there is a solution on a given interval.

Let's choose the interval [0,2]

f(x)=x^{3}-3x-1\\f(0)=(0)^{3}-3(0)-1\\f(0)=-1\\f(0)

Proceed to the other point: 2

f(x)=x^{3}-3x-1\\f(2)=(2)^{3}-3(2)-1\\f(2)=1\\f(2)>0\\

3) Check the 2nd Graph for a the Visual answer, of it.  And the 3rd graph for all solutions of this equation.

3 0
3 years ago
Lilly records the age, in years, and the height, in inches, of the starting players on the girls’ middle school basketball team.
storchak [24]

Answer:

No

Step-by-step explanation:

We are given that,

The relation in the form of ordered pairs (age, height) is given by,

(11,62), (12,64), (13,65), (13,67) and (14,68).

'A function is a relation in which every element has a unique image'.

So, for the given relation to be a function, every element must have unique image.

But, For age 13, there are girls with 65 and 67 inches of height i.e. the ordered pairs (13,65) and (13,67) exists.

Thus, 13 does not have a unique image.

Hence, the given relation is not a function.

3 0
3 years ago
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