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hodyreva [135]
3 years ago
9

Some one help me please

Mathematics
1 answer:
Lera25 [3.4K]3 years ago
5 0
11662 - 20%= 9329.6 add sales tax 6 3/4 % or 6.75% =$9,959.348 or $9,9959.35
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What is 9$ discounted to 4$ in percent form?
faust18 [17]
9 dollars is 4 dollars.
Let's find the percent form of the discount
=> 4 dollars / 9 dollars =  0.44
Now, let's convert it to percentage
=> 0.44 * 100% = 44%
Thus the discount is 44%

4 0
3 years ago
Keith works 8 hours per day for 5 per week. melba works 2,250 minutes each week. who spends more time at work
Orlov [11]

Answer:

Keith does.

Step-by-step explanation:

2250/60=37.5

8*5=40

Keith spends 40 hrs at work Melba spends 37.5 hrs.

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3 years ago
A math test is worth 100 points and has 38 problems. Each problem is worth either 5 points or 2 points. How many problems of eac
Natasha_Volkova [10]
Let x be the number of 5 points question.
Let y be the number of 2 points question.

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Total points is 100
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x + y = 38 ------------- (1)
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From (1):
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5(38 - y) + 2y = 100
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x = 38 - 30
x = 8

There are 8 5-point questions and 30 2-point questions
5 0
3 years ago
Read 2 more answers
Find the derivative of<br> <img src="https://tex.z-dn.net/?f=f%28x%29%20%3D%20%20%5Cfrac%7B6%7D%7Bx%7D%20" id="TexFormula1" titl
aev [14]
f'(x_0)=\lim\limits_{h\to0}\dfrac{f(x_0+h)-f(h)}{h}=\lim\limits_{x\to x_0}\dfrac{f(x)-f(x_0)}{x-x_0}\\\\f(x)=\dfrac{6}{x};\ x_0=2\\\\subtitute\\\\f'(2)=\lim\limits_{x\to2}\dfrac{\frac{6}{x}-\frac{6}{2}}{x-2}=\lim\limits_{x\to2}\dfrac{\frac{6}{x}-3}{x-2}=\lim\limits_{x\to2}\dfrac{\frac{6-3x}{x}}{x-2}=\lim\limits_{x\to 2}\dfrac{6-3x}{x(x-2)}\\\\=\lim\limits_{x\to2}\dfrac{-3(x-2)}{x(x-2)}=\lim\limits_{x\to2}\dfrac{-3}{x}=-\dfrac{3}{2}=-1.5\\\\\\An swer:\boxed{f'(2)=-1.5}
8 0
3 years ago
Find the negative difference between -12 and -25 ​
dexar [7]

Answer:

13

Step-by-step explanation:

-12 - - 25 =

- 12 + 25 =

13

5 0
3 years ago
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