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3 years ago

9

Alyssa spent half of her allowance going to the movies. She washed the family car and earned 7 dollars. What is her weekly allow

ance if she ended with 16 dollars?

1 answer:

Katarina [22]3 years ago

7 0

She gets 18 dollars a week

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A casino features a game in which a weighted coin is tossed several times. The table shows the probability of each payout amount

kkurt [141]

Answer:

The expected payout of the game is $230.46.

Step-by-step explanation:

The given table is

Payout Amount : $160 $4400 $145000

Probability : 0.146 0.024 0.0007

We need to find the expected payout of the game.

The formula for expected payout is

$\text{Expected payout}=\sum n_iP(x_i)$

where, n is amount and P(x) is probability of that event. The value of n is negative for loss.

Using the above formula we get

$\text{Expected payout}=160\times 0.146+4400\times 0.024+145000\times 0.0007$

$\text{Expected payout}=23.36+105.6+101.5$

$\text{Expected payout}=230.46$

Therefore the expected payout of the game is $230.46.

6 0

2 years ago

Sixty less than ten times ten

Otrada [13]

Answer:

40

Step-by-step explanation:

10x10=100

100-60=40

Hope this helps! :)

3 0

2 years ago

The average Math SAT score of all incoming freshman at a large university is 490. A simple random sample of 200 of these incomin

nika2105 [10]

Answer:

Which is the output of the formula =AND(12>6;6>3;3>9)?

A.

TRUE

B.

FALSE

C.

12

D.

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Step-by-step explanation:

4 0

3 years ago

Zara walked 3/4 mile in 30 minutes. How long will it take her to walk 2 miles?

Talja [164]

Answer:

80 minutes

Step-by-step explanation:

(3/4)/30=2/x

cross product

30*2=(3/4)x

60=3/4x

x=60/(3/4)

x=(60/1)(4/3)

x=240/3

x=80

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3 years ago

The following triangles are similar. True or False.

monitta

Answer:

It would be true

4 0

2 years ago