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3 years ago

a shea cd player costs $80 last year and $112 this year. what was the percent of increase in its price

Mathematics

1 answer:

Tresset [83]3 years ago

7 0

Answer:

40% increase

Step-by-step explanation:

c = final value - initial value

------------------------------------

initial value

112 - 80 = 32

32 / 80 = 0.4

0.4 = 40%

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40 ounces equal less then or greater to 4 lbs

astra-53 [7]

<span>4 lb is BIGGER. There are 16 ozs in a pound, so 40 oz = 2.5 lb, which is less than 40 pounds</span>

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3 years ago

Read 2 more answers

Using the point-slope formula, what is the equation of the line that passes through the points (1,5) and (0, 0)?

DerKrebs [107]

Answer:

y =5x

Step-by-step explanation:

$y_{1}-y_{2} = m(x_{1} - x_{2} )$

(5 - 0) = m(1 - 0)

5 = m(1)

5 = m

$y_{1}-y_{2} = m(x_{1} - x_{2} )$

y - 5 = 5(x - 1)

y - 5 = 5x - 5

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3 years ago

What is the slope of (-1,6) and (2,3)?

LenKa [72]

Answer:

-1

Step-by-step explanation:

For a line joining two points (x1, y1) and (x2, y2), it's slope is given as:

$\boxed{ \mathsf{slope = \frac{ y_{2} -y _{1}}{ x_{2} - x _{1}} }}$

Here, the two points are (-1, 6) and (2, 3) in place of (x1, y1) and (x2, y2).

Solving for slope:

$\implies \mathsf{ \frac{3 - 6}{2 - ( -1 )} }$

$\implies \mathsf{ \frac{ - 3}{2 + 1 } }$

$\implies \mathsf{ \frac{ - 3}{3 } }$

$\implies \mathsf{ - 1 }$

Hence, the slope of the line joining the given points is <u>-1.</u>

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3 years ago

I got letter C as my answer, is that correct?

lisov135 [29]

Yes it is C if you do the math and simplify it that is what you’ll get

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saul85 [17]

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3 years ago