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3 years ago

9 pints equal how many cups

2 answers:

7 0

Well if you think…there are 2 cups in every pint. To figure out your question you need to know that. Next you need to know how to multiply. You would multiply 9 times 2. If you dont know that answer then yiu can do the 9's trick. You would have all or your 10 fingers up,you would pit down 2 fingers. How many fingers are you holding up now? 8 right?! Now add the "teen". 18. Theres your answer! Its 18

Nataliya [291]3 years ago

4 0

18 cups because every pint equals 2 cups

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The initial cost of an office fax machine is $100. After 1 year, its value becomes $80. Which is the correct linear depreciation

Elis [28]

Answer:

$y=100-20x$

Step-by-step explanation:

Let the x-axis be the time (in years) and the y-axis the value of the fax machine (in dollars).

We know that the initial value of the fax machine is $100; in other words, when the time is zero years, the value is $100, or as an ordered pair (0, 100). We also know that after 1 year the value decreases to $80, so (1, 80).

Now we can find the slope of the line passing through those two points using the slope formula

$m=\frac{y_2-y_1}{x_2-x_1}$

where

$m$ is the slope

$(x_1,y_1)$ are the coordinates of the first point

$(x_2,y_2)$ are the coordinates of the second point

Replacing values:

$m=\frac{80-100}{1-0}$

$m=-20$

Now, to complete our model we are using the point slope formula

$y-y_1=m(x-x_1)$

where

$m$ is the slope

$(x_1,y_1)$ are the coordinates of the first point

Replacing values:

$y-100=-20(x-0)$

$y-100=-20x$

$y=-20x+100$

$y=100-20x$

We can conclude that the correct linear depreciation model is $y=100-20x$

7 0

3 years ago

A jazz concert brought in$113,000 on the sale of 7,200 tickets. If the tickets sold for $10 and $20 each, how many of each type

Anika [276]

<span>We'll make $10 x and the $20 y.

x + y = 7,200

10x + 20y = 113000

10x + 10y = 72000

10x + 20y = 113000

10y = 41,000

y = 4,100

Substitute y = 4,100

x + y = 7,200

x + 4,100 = 7,200

x = 7,200 - 4,100

x = 3,100

3,100 x $10 tickets
4,100 x $20 tickets</span>

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4 years ago

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3 years ago

Five candy bars cost $3.23. How much will 7 candy bars cost?

Svetlanka [38]

Answer: it will cost $4.85

Step-by-step explanation:

Hope this helped :)