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2 years ago

15

At 7 pm, a burning candle is 16 inches tall. At 9:30 pm, the candle is only 3.5 inches tall. What is the UNIT RATE of the number

of inches burned from the candle per hour?

2 answers:

Vinvika [58]2 years ago

8 0

The correct answer is 32 ……

sweet [91]2 years ago

7 0

Answer:

Step-by-step explanation:

32

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Idk how to solve 0=4+n over 5

miv72 [106K]

<span> 0=4+n over 5
In number form the equation is
</span> $0= \frac{4+n}5}$

<span>We want to isolate n, so to undue division we multiply, we'll multiply each side by 5 Leaving the equation as
</span> $0=20+n$
<span>
Next we'll subtract 20 from each side to isolate n
The equation would now be
</span> $-20=n$
<span>
So the answer is N=-20

</span>

5 0

3 years ago

Find the measure of the angle x to the nearest tenth.<br>A) 14.5<br>B) 75.5<br>C) 14.0<br>D) 55.3

Ratling [72]

Answer:

I think its C

Step-by-step explanation:

8 0

3 years ago

Novay_Z [31]

Answer:

5x

Step-by-step explanation:

4 0

3 years ago

the ratio of men to women working for a company is 4 to 7 if there are 231 employees total how many women work for the company.

Dvinal [7]

Answer:

297

Step-by-step explanation:

8 0

2 years ago

a manufacturer has determined that if his company sells x items per day then their profit is given by P=-x^2+ 700 x-10000 euros.

Radda [10]

Answer:

15

Step-by-step explanation:

To find the minimum amount of items, x, that need to be sold for the manufacturer to make a profit, we can use the quadratic formula

$x = \frac{-b+\sqrt{b^{2}-4ac } }{2a}; x= \frac{-b-\sqrt{b^{2}-4ac } }{2a}$

$x= \frac{-700+\sqrt{700^{2}-4(a)(-10000) } }{2(1)}; x= \frac{-700-\sqrt{700^{2}-4(a)(-10000) } }{2(1)}$

$x= \frac{-700+\sqrt{530000} }{2}; x= \frac{-700-\sqrt{530000} }{2}$

$x=\frac{-700+100\sqrt{53} }{2}; x=\frac{-700-100\sqrt{53} }{2};$

$x=-350 + 50\sqrt53 = 14.005; x = -350 - 50\sqrt53 = -714.005$

In context of the problem, we can only rely on the positive value, as the negative value would lead to a loss of profit.

$(-714.005)^2+700(-714.005)-10000=-0.360$

Furthermore, we must round to the nearest whole number, as you cannot make part of an item.

Lastly, if you were to plug in 14 into the equation for Profit, you would still have a negative number (i.e. a negative profit), thus requiring the manufacturer to make no less than 15 items to make a profit:

$(14)^2+700(14)-10000=-4\\\\(15)^2+700(15)-10000=725$

3 0

2 years ago