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Alecsey [184]
3 years ago
13

Another oneeeeeeeeeeeeeeeeee

Mathematics
2 answers:
Inessa05 [86]3 years ago
6 0

Answer:

c

Step-by-step explanation:

pick me as the brainlist

aalyn [17]3 years ago
6 0

Answer:

B. The student multiplied 380 by \frac{19}{20}.

Step-by-step explanation:

In the equation -\frac{3}{4}y - \frac{1}{5}y = 380, we can further evaluate the equation into:

-\frac{19}{20}y = 380

To find y, we need to multiply 380 by the inverse of the fraction on the other side, which is -\frac{20}{19}. However, the students multiplied 380 by \frac{19}{20} to get 361. Thus, this was the mistake.

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3 years ago
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Citrus2011 [14]

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3 0
3 years ago
Someone please help! find x round to the nearest tenth! trigonometry!​
TEA [102]

Answer:

<h2>x = 745.5 ft</h2>

Step-by-step explanation:

Look at the picture.

Use sine:

sine=\dfrac{opposite}{hypotenuse}

We have a measure of the angle and length of the opposite:

\alpha=28^o,\ opposite=350\ ft

\sin28^o\approx0.4695

Substitute:

\dfrac{350}{x}=0.4695

\dfrac{350}{x}=\dfrac{4695}{10000}            <em>cross multiply</em>

4695x=3500000           <em>divide both sides by 4695</em>

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5 0
3 years ago
If (x, y) is a solution to the system of equations, what is the value of x?
GREYUIT [131]

Answer:

B) -4

Step-by-step explanation:

(5/2)x + y = 2

x + (2/3)y = 4

y = 2 - (5/2)x

x + (2/3)(2 - (5/2)x) = 4

x + 4/3 - (5/3)x = 4

(-2/3)x = 8/3

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3 0
3 years ago
Which graph represents the solution set of y = x2 + 4x + 3 and y = 2x + 6?
dybincka [34]
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3 0
2 years ago
Read 2 more answers
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