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3 years ago

A cricket bat is bought for $350.

Mathematics

1 answer:

Luda [366]3 years ago

3 0

15%= .15

.15 × $350= 52.50

$350 - 52.50= $297.50

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Please help *THIS IS ON PERSONAL FINANCIAL LITERACY "

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Answer:

I think the answer is $56,600

Step-by-step explanation:

I'm pretty sure you're just going to add $63,000+$8,400+$2,900+$1,1000. Then when you get a total of $75,400 and then I think you are going to subtract $15,400 from $75,400, you should get $60,000 then subtract $3,400 and you get $56,600.

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Step-by-step explanation:

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3 years ago

Suppose it is known that 60% of radio listeners at a particular college are smokers. A sample of 500 students from the college i

vladimir1956 [14]

Answer:

The probability that at least 280 of these students are smokers is 0.9664.

Step-by-step explanation:

Let the random variable X be defined as the number of students at a particular college who are smokers

The random variable X follows a Binomial distribution with parameters n = 500 and p = 0.60.

But the sample selected is too large and the probability of success is close to 0.50.

So a Normal approximation to binomial can be applied to approximate the distribution of X if the following conditions are satisfied:

1. np ≥ 10

2. n(1 - p) ≥ 10

Check the conditions as follows:

$np=500\times 0.60=300>10\\n(1-p)=500\times(1-0.60)=200>10$

Thus, a Normal approximation to binomial can be applied.

So,

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Apply continuity correction:

P (X ≥ 280) = P (X > 280 + 0.50)

= P (X > 280.50)

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*Use a z-table for the probability.

Thus, the probability that at least 280 of these students are smokers is 0.9664.

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3 years ago

12 x+12y = 156 4x + 6y =62 I need help please

mojhsa [17]

Answer:

{x,y}={8,5}

Step-by-step explanation:

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3 years ago