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bogdanovich [222]

3 years ago

15

An electronic store is advertising a discount of 18 percent off the inventory. Constantine buys a DVD player that cost $300. Wha

t is the sale price pf the DVD player?

1 answer:

mel-nik [20]3 years ago

7 0

100 % minus 18 % is 82% or .82

So multiply the price by .82 to get the sale price

300(.82)= 246

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Gnoma [55]

15/20 and 16/20
4/5 or 16/20 is greater

7 0

2 years ago

For the differential equation dy/dt=ky, k is a constant, y(0)=24, and y(1)=18. What is the value of k?

Gre4nikov [31]

The equation is separable, so solving it is trivial:

$\dfrac{\mathrm dy}{\mathrm dt}=ky\implies\dfrac{\mathrm dy}y=k\,\mathrm dt$

Integrating both sides gives

$\ln|y|=kt+C\implies y=e^{kt+C}=Ce^{kt}$

Given $y(0)=24$ and $y(1)=18$ , we find

$24=C$

$18=Ce^k=24e^k\implies e^k=\dfrac34\implies k=ln\dfrac34$

so the answer is E.

8 0

3 years ago

Read 2 more answers

The ratios in an equivalent ratio table are 3:12, 4:16, and 5:20. If the first number in theratio is 10, what is the Second numb

Zanzabum

Answer:

10:40

Step-by-step explanation:

As the left number increases by 1, the right number increases by 4. So as you can see, the left numbers go 3-4-5 while the right numbers go 12-16-20. So the answer is 10:40 because 10x4=40.

6 0

3 years ago

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Find the slope of the line that passes through (4,-5) and (-2,9)

stiks02 [169]

Answer:

C) -7/3

Step-by-step explanation:

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

m=(9-(-5))/(-2-4)=(9+5)/-6=14/-6

simplify -14/6 to -7/3

4 0

3 years ago

5+5=10+10=20-10=10-5=5

defon

Answer:

Correct!

Step-by-step explanation:

The final answer is 5.

5 0

2 years ago