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Savatey [412]
3 years ago
12

How do you solve 8 1/2% of $200

Mathematics
1 answer:
atroni [7]3 years ago
8 0

Answer:

Step-by-step explanation:

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Simplify |−19+9|/3−|14−22|/9.
aliina [53]

Answer:

2¾

Step-by-step explanation:

\\  \sf \frac{ | - 19 + 9| }{3}  -  \frac{ |14 - 22| }{9}

\\  \sf =  \frac{ | - 10| }{3}  -  \frac{ | - 8| }{9}

\\  \sf =  \frac{10}{3}  -  \frac{8}{9}

\\  \sf =  \frac{30 - 8}{9}

\\  \sf =  \frac{22}{8}

\\  \sf =  \frac{11}{4}

\\  \sf =  2 \frac{3}{4}

6 0
3 years ago
Shiny White dental insurance costs $258 per year. Approximately one-third of insured people need a filling, which averages $110
sveta [45]

Answer:

  about $145.33

Step-by-step explanation:

Consider a group of 15 customers. They will pay ...

  15 × $258 = $3870

in premiums each year.

One-third of those, 5 customers, will submit claims for fillings, so will cost the insurance company ...

  5 × $110 = $550

And 80% of them, 12 customers, will submit claims for preventive check-ups, so will cost the company ...

  12 × $95 = $1140

The net income from these 15 customers will be ...

  $3870 -550 -1140 = $2180

Then the average income per customer is this value divided by the 15 customers in the group:

  $2180/15 = $145.33

_____

<em>Alternate solution</em>

Above, we chose a number of customers that made 1/3 of them and 4/5 of them be whole numbers. You can also work with one premium and the probability of a claim:

  258 - (1/3)·110 - 0.80·95 = 145.33

8 0
3 years ago
Read 2 more answers
Jerry's Seed Palace claims that 80% of its lima bean seeds will germinate. Suppose the company's claim is true. Callie buys a pa
Mekhanik [1.2K]

Answer:

A

Step-by-step explanation:

This is a Bernoulli trial problem.

Since the probability that the seed will germinate is 80% or 0.8, the probability that they won’t germinate is 0.2

Now let’s say the probability to germinate is p and the probability not to is a, we can now set up the Bernoulli equation in this regard. Since we are proposing that exactly 14 will germinate, it means 6 are not expected to germinate

P(14) = 20C14 (0.8)^14 (0.2)^6 = 0.109099700973

Option A is the right answer

3 0
3 years ago
How do you expand 3(11x + 1)
Reika [66]

Answer:

33x + 3

Step-by-step explanation:

To expand an equation like the one you have shown, multiply the 3 with everything inside the parenthesis.

3*11x=33x

3*1=3

5 0
4 years ago
Read 2 more answers
Please help me !!!!
liq [111]

Answer:

...

against the wind, an airplane travels 3640 km in 7 hours.

with the wind, the same plane travels 6000 km in 6hrs.

...

let speed of plane in still air be x mph

speed of wind be y mph.

..

t=d/r

..

against wind speed = x-y mph

with wond speed = x=y mph

...

3640/(x-y)=7

3640 = 7x-7y

/7

520=x-y.....................1

...

6000/x+y = 6

6000 = 6x+6y

/6

1000=x+y.....................2

...

Add (1) & (2)

2x=1520

/2

x=760 mph speed of plane in still air

...

plug value of x in 2

1000=760+y

100-760=y

240 = y

240 mph speed of wind

8 0
3 years ago
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