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svlad2 [7]
3 years ago
9

Need the answer asap

Mathematics
1 answer:
Vikki [24]3 years ago
3 0
B I think.correct if I’m wrong
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Jonah was paid $2900 to complete a landscaping job. He had to purchase $1200 worth of materials to use for the project. Then, he
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Answer:

$17.35

Step-by-step explanation:

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1 5/6 −(x− 7/12 )+2 1/12 =0.9
iren [92.7K]
The answer is x=3.6 or 3 3/5.

First we convert the decimal answer to a fraction; 0.9 is read as "nine tenths," so the corresponding fraction is 9/10:

1 5/6 - (x - 7/12) + 2 1/12 = 9/10

Now we find a common denominator.  The first thing that 6, 12 and 10 will all divide into is 60:

1 50/60 - (x - 35/60) + 2 5/60 = 54/60

Distributing the negative, we have:
1 50/60 - x + 35/60 + 2 5/60 = 54/60

Combining like terms, we have:
-x + 4 30/60 = 54/60

Subtracting 4 30/60 from each side, we have:
-x + 4 30/60 - 4 30/60 = 54/60 - 4 30/60
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Divide both sides by -1:
-x/-1 = (-3 36/60)/-1
x = 3 36/60 = 3 3/5 = 3.6
5 0
3 years ago
Differentiate. The answer is supposed to be -3/ sqrt 4-x^2
Margarita [4]

Answer:

Step-by-step explanation:

g(x)=\cos^{-1} (\frac{x}{2})\\g'(x)= \frac{- 1}{\sqrt{1-(\frac{x}{2})^2}}*\frac{1}{2} \\=\frac{-1}{\sqrt{4-x^2} }

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3 years ago
Lupita bought 7 pounds of pretzels at a local wholesaler for $16.80. Her friend Charles bought 5 pounds of pretzels at the super
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Charly has the better buy

Step-by-step explanation:

The unit cost is

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Her friend Charles bought 5 pounds of pretzels at the supermarket for $12.75

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Charly got the best deal because the unit cost per item is less than that of the friend

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Nancy has nine books and she has read 8 total books Sally has two times more books the Nancy how many books does Sally have
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Sally has eight-teen books.
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