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marshall27 [118]
3 years ago
5

Question in picture above

Mathematics
1 answer:
Gnesinka [82]3 years ago
5 0

Answer:

B.(12,5)

Step-by-step explanation:

Hope this helps :)

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21. If you buy a pair of shoes for $80 and the sales tax is 3%, Find the total cost
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Answer: 82.40

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❗❗❗❗HELP❗❗❗❗
just olya [345]

The power increases by 21% per hour. 21% written as a decimal is 0.21.

Because it increases you would multiply the starting value by 1.21 times the number of hours (t).

That needs to be less than or equal to 100,00

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C: 15,040(1.21)t ≤ 100,000

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Write an expression that is equivalent to (4x + 9)
zalisa [80]
As this is already in its simplest form, I believe the only other expression is 4*X +9
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18. During a clothing store's Bargain Days, the regular price for T-shirts is discounted to $8.25.
8090 [49]

Answer:

3.25

Step-by-step explanation:

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\\\\\\\-------!!!!!40 POINTS!!!!-----\\\\\\\\\
aleksandrvk [35]
Let's actually find the line of best fit...

m=(nΣyx-ΣyΣx)/(nΣx^2-ΣxΣx)

m=(11*836-130*55)/(11*385-3025)

m=2046/1210  

m=93/55

b=(Σy-93Σx/55)/n

b=(55Σy-93Σx)/(55n)

b=(7150-5115)/(55*11)

b=185/55, so the line of best fit is:

y=(93x+185)/55

A)  The approximate y-intercept (the value of y when x=0) is 185/55≈3.36.

Which means that those who do not practice at all will win about 3.36 times

B) y(13)=(93x+185)/55

y(13)≈25.34

So after 13 months of practice one would expect to win about 25.34 times.
3 0
3 years ago
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