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dolphi86 [110]
3 years ago
8

I don't really know how to start

Mathematics
2 answers:
patriot [66]3 years ago
6 0
4v/27 = 16
You have to get rid of the 27 in the denominator, do so by multiplying both sides by the 27.
Now you have:
4v = 432
Next you need to get rid of the 4 by dividing both sides by 4
Your answer is now:
v = 108
Art [367]3 years ago
5 0
Answer: v=108

here are the steps:
1. multiply both sides by 27. \frac{4v}{27} x 27 = 16 x 27
2. refine. 4v = 432
3. divide both sides by 4. \frac{4v}{4} = \frac{432}{4}
4. refine. v = 108
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bazaltina [42]
The ration of x to y is 1:3 if you divide 2:6 by its gcf (2), you get 1:3.
5 0
3 years ago
A certain brand of flood lamps has a lifetime that is normally distributed with a mean of 3,750 hours and a standard deviation o
vesna_86 [32]
Given that mean=3750 hours and standard deviation is 300:
Then:
<span>a. The probability that a lamp will last for more than 4,000 hours?
P(x>4000)=1-P(x<4000)
but
P(x<4000)=P(z<Z)
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z=(x-</span>μ)/σ
z=(4000-3750)/300
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<span>b.What is the probability that a lamp will last less than 3,000 hours?
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c. </span><span>.What lifetime should the manufacturer advertise for these lamps in order that only 4% of the lamps will burn out before the advertised lifetime?
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the value of z corresponding to 0.04 is z=-2.65
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7 0
3 years ago
2h divided by 15 equals 20
Lynna [10]
<span>(2*h)/15 = 20 // - 20

(2*h)/15-20 = 0

2/15*h-20 = 0 // + 20

2/15*h = 20 // : 2/15

h = 20/2/15

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h = 150</span>
8 0
3 years ago
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5 0
3 years ago
In the diagram <br> What is m
lakkis [162]
M is going to be 24. hope this helps
8 0
3 years ago
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