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2 years ago

12

The current price of a pair of Lux basketball shoes is $\$30$. The original price had been reduced by $25\%$. That reduced price

was then lowered by $50\%$, to arrive at the current price. What was the original price?

1 answer:

uysha [10]2 years ago

4 0

Answer:

okay

Step-by-step explanation:

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Doug bought a new car for 25,

pentagon [3]

This is exponential decay which can be expressed as:

y=ab^t, y=final value, a=initial value, b=rate, t=time

In this case a=25000, r=(100-20)/100=0.8 so

y=25000(0.8^t), so in 4.5 years...

y=25000(0.8^4.5)

y≈$9158.93 (to nearest cent)

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2 years ago

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Graph the equation on the coordinate plane.

abruzzese [7]

Solution :

Given, the equation $y=-2x$ .

To graph the equation on the coordinate plane, we first need to derive the different points of the equation $y=-2x$ ,

$at\:\;x=0\Rightarrow y= -2(0)=0\\\\at\:\;x=1\Rightarrow y= -2(1)=-2\\\\at\:\;x=2\Rightarrow y= -2(2)=-4\\\\at\:\;x=3\Rightarrow y= -2(3)=-6\\\\at\:\;x=-1\Rightarrow y= -2(-1)=2\\\\at\:\;x=-2\Rightarrow y= -2(-2)=4\\\\at\:\;x=-3\Rightarrow y= -2(-3)=6$

The graph plotted using these points is shown in the figure,

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3 years ago

Explain how to write the equation of a line if you know its y-intercept and the equation of a line to which it is parallel?

suter [353]

If you use the equation y = mx+b then you already know what the b term is because you have the y intercept. For the m (slope) you take the slope of the other line and use that because since there parallel they are going to run at the same angle (slope). Hope this helped. If you have any questions just ask.

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2 years ago

What is the slope of the line between (-4, 4) and (-1, -2)? (1 point)<br> 0 1<br> C 2<br> 0-2<br> -1

zmey [24]

Answer:

2

Step-by-step explanation:

y2 - y1 / x2 - x1

-2 - 4 / -1 - (-4)

-2 - 4 / -1 + 4

-6 / 3

2

5 0

2 years ago

MODELING REAL LIFE A charm bracelet costs $65, plus $25 for each charm. The equation -25x+y=65 represents the cost y (in dollars

Fed [463]

Answer:

B = $140

Step-by-step explanation:

for part A, the graph is linear line with a Y intercept at (0,65) so this means that if you were to have no charms it would cost 65 dollars, since the y axis represents cost. then for every 1 increment on the x axis (number of charms) the Y value increases by 25 so the slope is $\frac{25}{1}$

we also can conclude that there is no negative domain since you cannot have negative charms, and the range begins at 65 since you cannot get a bracelet for less money

for part B, y=25x+65

so for three charms, x is represented as 3 so y=25(3) +65 which is 75+65=y= $140

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2 years ago