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ASHA 777 [7]
3 years ago
9

Five students bought supplies. Three students each bought 3 pencils and an eraser. Two students each bought a pen and 2 pencils.

Supply Cost pencil $0.16 eraser $0.56 pen $0.45 Select the equation that can be used to find the total cost (c) of the supplies. Mark all that apply.
Mathematics
1 answer:
Black_prince [1.1K]3 years ago
8 0

Answer:

(5×0.16)+ (1× 0.56) +(1 ×0.45)

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musickatia [10]

Answer:

The line u and line v have no point of intersection because they are parallel lines

Step-by-step explanation:

The slope of a straight line is given as follows;

Slope, \, m =\dfrac{y_{2}-y_{1}}{x_{2}-x_{1}}

The slope of line u is (4 - (-8))/(5 - 9) = -3

The equation for line u is y - 4 = -3*(x - 5)

y = -3·x + 15 + 4 = 19 - 3·x

The slope for line v is (-7 - 2)/(7 - 4) = -3

The equation for the line v is y - 2 = -3*(x - 4)

∴ y = -3x + 12 + 2 = -3x + 14

y = 14 - 3·x

Therefore. line u and line v have the same slope and are therefore parallel and they do not intersect

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kolbaska11 [484]

Answer:

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Step-by-step explanation:

Since they're directly proportional, when divided they have to equal the same.

180/15= 12 and 276/23= 12

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mars1129 [50]

Answer:

\frac{5}{6}

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This is because \frac{2}{3}=\frac{4}{6}

The rule is, in order to add fractions, your denominators must be equivalent. In other words, you must have the same denominator for both fractions.

<em>Now what do we do? We add!</em>

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This is because 4 + 1 = 5.

Your answer is \frac{5}{6}.

I hope this helps!

<h2><u>PLEASE MARK BRAINLIEST!</u></h2>
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Answer:

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Step-by-step explanation:

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