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Kay [80]
3 years ago
13

2.5y+3x=27 5x-2.5y=5

Mathematics
2 answers:
Elden [556K]3 years ago
8 0
X would equal 4 & y would equal 6
zhenek [66]3 years ago
3 0

Answer:

x=4

y=6

Step-by-step explanation:

2.5y + 3x = 27 \\  + (5x - 2.5y = 5) \\  \\ 8x = 32 \\ x = 4 \\  \\ 2.5y + 3x = 27 \\ 2.5y + 3(4) = 27 \\ 2.5y + 12 = 27 \\ 2.5y = 15 \\ y = 6

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A company makes two mixtures of nuts: Mixture A and Mixture B. Mixture A contains 30% peanuts, 30% almonds and 40% cashews and s
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3 years ago
I have been stuck with this question can someone help me on 10
inn [45]
Work:

A 12-pack of boxes is 4 3-pack of boxes, I found this by dividing 12 by 3. 

A 24-pack of boxes is 2 12-pack of boxes, found by dividing 24 by 12.

A 24-pack of boxes is 8 3-pack of boxes, found by dividing 24 by 3 or by multiplying the two previous together (sometimes may not work)
Multiply 
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That gets you to $4.36, which is less than the price of a 12-pack of boxes.

Then, multiply
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That gets you $8.78, which is less than a 24-pack of boxes.

Finally, multiply
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That gets you $8.72, which is less than a 24-pack of boxes.

Answer:

The best to buy is the 3-pack of boxes of juice, because it is cheaper when buying multiple of the 3-packs than it is to buy one or more of the 12-pack or 24-pack.

Hope this helps anyone with the question.
4 0
3 years ago
Read 2 more answers
PLEASEEEEEEEE HELP ME I NEED TO TURN THIS IN
Aloiza [94]

Answer:

102 degrees

Step-by-step explanation:

Since the two angles are same side interior that would mean they sum up to 180 degrees.

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hoped this helped :)

4 0
2 years ago
A direct variation function contains the points (–8, –6) and (12, 9). Which equation represents the function?
mamaluj [8]

Answer:

Option C. y=(3/4)x

Step-by-step explanation:

we know that

A relationship between two variables, x, and y, represent a direct variation if it can be expressed in the form y/x=k or y=kx

In a proportional relationship the constant of proportionality k is equal to the slope m of the line and the line passes through the origin

so

Find the value of the constant k

For the point (-8,-6)

k=y/x=(-6/-8)=3/4

For the point (12,9)

k=y/x=(9/12)=3/4

<u><em>Note</em></u> A single point was required to find the constant k (because the line passes through the origin)

The equation is equal to

y=(3/4)x

7 0
3 years ago
Read 2 more answers
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