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3 years ago

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A bicycle store costs $2600 per month to operate. The store pays an average of $55 per bike. The average selling price of each b

icycle is $95. How many bicycles
must the store sell each month to break even?

1 answer:

KatRina [158]3 years ago

3 0

Answer:

58

Step-by-step explanation:

95 - 55 = 45

2600 / 45 = 57.77778.....

Because you can't sell 0.777778 of a bike you instead sell 58

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The credit remaining on a phone card (in dollars) is a linear function of the total calling time made with the card (in minutes)

ella [17]

Answer:

Knowing that thet credit decrease linearly, you can use the equation of a straight line to find the answer

Step-by-step explanation:

We will say that the time is 't', and the remaining money is 'm'.

The equation of an straight line is like this:

(y2-y1)=m*(x2-x1)

Where x2 and x1 are two values of the horizontal axis, y2 and y1 are the image of x2 and x1 in the vertical axis, and m is the slope.

For our problem we will say that 't' is in the horizontal axis and 'm' is in the vertical one, as m decreases with t. So:

(m2-m1)=m*(t2-t1)

Now we can substitute with the two pair of values that we already have to find the slope of the straight line:

(18.90-23.85)=m(74-41)

Once we have got the slope, we can do the same but with another point, as the slope is always the same:

(m3-m1)=m*(t3-t1)

Our third point is the one which t=102min so our incognit will be its image, m3:

(m3-23.85)=m*(102-41)

We have it all but m3, so we can solve it

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Minchanka [31]

Answer:

I don't give answers sorry.

Step-by-step explanation:

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Follow the directions to solve the system of equations by elimination. 8x + 7y=39 4x – 14y = -68

harina [27]

Step-by-step explanation:

Hey there!

Here;

The equations are;

$8x + 7y = 39.......(i)$

$4x - 14y = - 68..........(ii)$

Multiplying equation (i) by 2.

16x + 14y = 78

<u>4</u><u>x</u><u> </u><u>-</u><u> </u><u>1</u><u>4</u><u>y</u><u> </u><u> </u><u> </u><u>=</u><u> </u><u>-68</u>

20x = 10

$x = \frac{10}{20}$

x = 1/2.

Putting value of 'x' in equation (i).

$8 \times \frac{1}{2} + 7y = 39$

$4 + 7y = 39$

$7y = 3 9 - 4$

$y = \frac{35}{7}$

Therefore the value of y is 5.

<u>Check</u><u>:</u>

<u>Put</u><u> </u><u>value</u><u> </u><u>of</u><u> </u><u>x</u><u> </u><u>and</u><u> </u><u>y</u><u> </u><u>in</u><u> </u><u>equation</u><u> </u><u>(</u><u>i</u><u>)</u><u>.</u>

8x + 7y = 39

$8 \times \frac{1}{2} + 7 \times 5 = 39$

$4 + 35 = 39$

$39 = 39$

(True).

<u>Therefore</u><u>, </u><u>the</u><u> </u><u>solution</u><u> </u><u>is</u><u> </u><u>;</u><u> </u><u>(</u><u>1</u><u>/</u><u>2</u><u>,</u><u>5</u><u>)</u><u>.</u>

<em><u>Hope it helps</u></em><em><u>.</u></em><em><u>.</u></em><em><u>.</u></em>

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3 years ago