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lina2011 [118]
3 years ago
9

What is the constant of proportionality for the graph?

Mathematics
1 answer:
Lelechka [254]3 years ago
3 0

Answer:

k = 5

Step-by-step explanation:

y = kx

10 = 2k

k = 5

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An omelette costs $1.50 more than Mario's order of pancakes. After treating his family to breakfast, Mario is sure that 4 omelet
masha68 [24]
The other answer here, by Nicholasrichar, has the correct answers,
but it's a pain to follow through step-by-step because of the formatting
problem.  Here's my solution, leading to the same answers:

P = cost of pancakes
cost of omeletto, = P+1.50

4 omelettes = 4P + 6
3 pancakes = 3P

Total cost of food = 7P + 6
After 7% tax         = 1.07(7P + 6)
After tip                = 1.07(7P + 6) + 3.50

Eliminate parentheses:  1.07(7P) + 1.07(6) + 3.50 =
                                        7.49P    +    6.42  + 3.50  = 

Total cost of breakfast:        7.49P + 9.92 .

Having a "range" between $25 and $40 is really two inequalities:

First inequality:    $25 < 7.49P + 9.92

Subtract 9.92 from each side:  15.08 < 7.49P

Divide each side by 7.49:          $2.013 < P

An order of pancakes costs more than $2.01 .


Second inequality:    7.49P + 9.92 < $40

Subtract  9.92 from each side:  7.49P < 30.08

Divide each side by  7.49 :              P < $4.016

An order of pancakes costs less than $4.02.

The price range of an order of pancakes is   $2.01 < Pancakes < $4.02 .

7 0
3 years ago
Read 2 more answers
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Step-by-step explanation:

x + x + y + y + 3(2 + 4)

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3 years ago
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the answer is A. as - x - = +


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Alexus [3.1K]

Answer:

Tbh Idek what to tell you

Step-by-step explanation:

7 0
3 years ago
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Vlada [557]
That would be d -73
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