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Andrei [34K]
3 years ago
7

Maria is purchasing a sweater marked 40% off. The original price of the sweater is $60. The sales tax is 6%, what is the total a

mount she will pay for the sweater?
Mathematics
1 answer:
GalinKa [24]3 years ago
6 0

40% off means she is paying 60% of the original price:

60 x 0.60 = 36.00

The sale price is $36

Now add the tax:

36 x 1.06 = 38.16

She pays $38.16 total

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Hopeful this makes seance to one of ya'll
Len [333]

Answer:

NOR = 126.6

Step-by-step explanation:

one full circle would have 360 degrees

so we can make an equation that shows all of our angles adding up to 360:

NOQ + QOR + NOR = 360

we know that NOQ is 147.7

we know that QOR is 85.7

substitute these into our equation:

147.7 + 85.7 + NOR = 360

add like terms:

233.4 + NOR = 360

subtract 233.4 from both sides:

NOR = 126.6

5 0
3 years ago
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In a recent year, 33.9% of all registered doctors were female. If there were 44,800 female registered doctors that year, what wa
mash [69]

Answer:

wrong

Step-by-step explanation:

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2 years ago
Apples sell for $1.90 per pound, and bananas sell for $0.75 per pound. Troy bought some apples and some bananas. Together they w
jolli1 [7]
Answer choices xx? 
<span>]to find the number of bananas you have to take the total 3.8 and subtract apples 3.8-a</span>
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3 years ago
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PLEASE HELP ME ON THESE PROBLEMS, ITS URGENT! (Help for any of these would be greatly appreciated!)
Anvisha [2.4K]
1.) We can solve the problem by developing a linear model.
Let x represent the quantity to be used of the grade of coffee that sells for $70 per pound, and y represent the quantity to be used of the grade of coffee that sells for $80 per pound, then
\left\begin{array}{c}x+y=80 . . . (1)\\70x+80y=76(80) . . . (2)\end{array}\right  \\   \\ \Rightarrow  \left\begin{array}{c}80x+80y=6400 . . . (3)\\70x+80y=6080 . . . (4)\end{array}\right  \\  \\ \Rightarrow10x=320 \\  \\ \Rightarrow x=32 \\  \\ \Rightarrow y=80-32=48
Therefore, 32 pounds of the grade of coffee that sells for $70 per pound, and 48 pounds of the grade of coffee that sells for $80 per pound should be used.


2.) Volume of alcohol in the original mixture
\frac{35}{100} \times 40=14 quarts

Let x be the number of quarts of alcohol to be added, then
Volume of alcohol in the new mixture
\frac{48}{100} \times (40+x)=14+x \\  \\ \Rightarrow19.2+0.48x=14+x \\  \\ \Rightarrow0.52x=5.2 \\  \\ \Rightarrow x=10

Therefore, 10 quarts of pure alcohol should be added


3.) Original proportion of white paint in the mixture
=\frac{5}{5+11}=\frac{5}{16}

Let x be the number of gallons of white paint to be added, then
\frac{5+x}{16+x}=\frac{2}{3} \\  \\ \Rightarrow3(5+x)=2(16+x) \\  \\ \Rightarrow15+3x=32+2x \\  \\ \Rightarrow x=32-15=17
Therefore, 17 gallons of white paint should be added.


4a.) Let the three consecutive odd integers be x - 2, x and x + 2, then
x - 2 + x + x + 2 = 25 \\  \\ \Rightarrow3x=25\Rightarrow x=8.33
which is not an integer.
Hence, the sum of three consecutive odd integers cannot be 25.

4b.) Let the three consecutive odd integers be x - 2, x and x + 2, then
x - 2 + x + x + 2 = 45 \\ \\ \Rightarrow3x=45\Rightarrow x=15
Thus, the three consecutive odd intergers whose sum is 45 are 13, 15 and 17.


5.) If all pipes are open and the tank was initially empty, let t be the time it will take to fill the tank, then
\frac{1}{t} = \frac{1}{9} + \frac{1}{12} - \frac{1}{15} = \frac{20+15-12}{180} = \frac{23}{180} \\  \\ \Rightarrow t= \frac{180}{23} =7.83
Therefore, it will take 7.83 hours to get the tank filled up.
3 0
3 years ago
What is the midpoint of 2,-6 and -8,5
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Step-by-step explanation:

midpoint = ( \frac{2 - 8}{2} ,  \frac{ - 6 + 5}{2} )

= ( \frac{ - 6}{2} , \frac{ - 1}{2} )

= ( - 3, - 0.5)

6 0
3 years ago
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