3 years ago

Write an equation and solve.

Mathematics

1 answer:

Reil [10]3 years ago

4 0

My equation was (1230÷3) ×4 ×this is the multiplication sign

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If there are 1500 guests, only 1 of them brought a coupon for free admission to the carnival?

wlad13 [49]

So 1/50 brought the pass
x out 1500
1/50 = x/1500
cross multiply
1500 = 50x
divide both sides by 50
30 = x

You can expect for 30 out of the 1,500 to receive free admissions.

Hope this helps

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What is 10/13 + 8/13 ?

ludmilkaskok [199]

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There are 438 students at a middle school. If 38% of the students participate in after school sports what would the number of st

umka21 [38]

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6 0

3 years ago

The lifespan, in years, of a certain computer is exponentially distributed. The probability that its lifespan exceeds four years

kompoz [17]

Answer:

The correct answer is " $0.300993e^{-0.300993x}$ ".

Step-by-step explanation:

According to the question,

⇒ $P(x>4)=0.3$

We know that,

⇒ $P(X > x) = e^{(-\lambda\times x)}$

⇒ $e^{(-\lambda\times 4)} = 0.3$

∵ $\lambda = 0.300993$

Now,

⇒ $f(x) = \lambda e^{-\lambda x}$

By putting the value, we get

$=0.300993e^{-0.300993x}$

3 0

3 years ago