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inysia [295]
3 years ago
11

In 2006, there were 12,440 starbucks stores worldwide. this is approximately 1126% more stores than 10 years earlier. How many S

tarbucks stores were there in 1996?
I can't figure out how to set up this problem when the percent of increase is greater than 100
Mathematics
1 answer:
Marizza181 [45]3 years ago
3 0
Let's say there were "x" in 1996, therefore, "x" is the 100%.

10 years later, there are 12440, and that is 1126% "more" than "x", since "x" is 100%, 1126% more than that is 100% + 1126%, or 1226%.

so, 12440 is really 1226% of whatever "x" happened to have been back then in 1996.

now, since we know that 12440 is 1226%, what is "x" then?

\bf \begin{array}{ccll}
amount&\%\\
\text{\textemdash\textemdash\textemdash}&\text{\textemdash\textemdash\textemdash}\\
x&100\\
12440&1226
\end{array}\implies \cfrac{x}{12440}=\cfrac{100}{1226}\implies x=\cfrac{12440\cdot 100}{1226}
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-x+1,4 &lt;0<br> f(x)= -2,x=0<br> x2-1, x &gt; 0
Blababa [14]

Answer:

Step-by-step explanation:

That is not something you can do it would be a large number

5 0
3 years ago
29 yd 2ft 11 in + 55 yd 1 ft 10in + 13 yd 1ft 3in=
alexandr402 [8]
Add up all.

Yards = 29 + 55 + 13 = 97

Feet = 2 + 1 + 1 = 4

Inches = 11 + 10 + 3 = 24

In conclusion your final anwser is

97 yd. 4 ft. 24 in.

Hope this helps!
Have a great day.
7 0
3 years ago
OK my paper says the numerical expression 5+12 represent the sum of 5 and 12. I don't understand
Afina-wow [57]
That literally means the numbers '5' and '12' written like this: 5 + 12

represent the sum of 5 and 12, which is the same as 5 + 12 (because the sum is when all the numbers are added up).

So it's saying 5 + 12 equals to 17. 

Do you get it? 
5 0
3 years ago
Read 2 more answers
It is known that the population variance equals 484. With a .95 probability, the sample size that needs to be taken to estimate
Hitman42 [59]

Answer:

The minimum sample size is n = 75 so that the desired margin of error is 5 or less.                          

Step-by-step explanation:

We are given the following in the question:

Population variance = 484

Standard deviation =

\sigma^2 = 484\\\sigma =\sqrt{484} = 22

Confidence level = 0.95

Significance level = 0.05

Margin of error = 5

Formula:

Margin of error =

E = z\times \dfrac{\sigma}{\sqrt{n}}\\\\n = (\dfrac{z\times \sigma}{E})^2

z_{critical}\text{ at}~\alpha_{0.05} = 1.96

Putting values, we get

E\leq 5\\\\1.96\times \dfrac{22}{\sqrt{n}} \leq 5\\\\\sqrt{n} \geq 1.96\times \dfrac{22}{5}\\\\n \geq (1.96\times \dfrac{22}{5})^2\\\\n \geq 74.373

Thus, the minimum sample size is n = 75 so that the desired margin of error is 5 or less.

3 0
3 years ago
Which number sentence shows that the sum of a number and its opposite is 0?
Kazeer [188]

Answer:

A. −4 + 4 = 0

Step-by-step explanation:

-4 + 4 = 0

4 - 4 = 0

So option A will be the answer

3 0
2 years ago
Read 2 more answers
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