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3 years ago

1/4 x 6 + 3 x 7 anybody know the answer

Mathematics

1 answer:

marta [7]3 years ago

8 0

Answer:

22.5 or 22 1/20

Step-by-step explanation:

1/4 x 6 = 1.5 7 x 3 = 21 21 + 1.5 = 22.5

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Please help !! ed 2020-2021 question trig

Vanyuwa [196]

Answer:

huh cant see the pic

Step-by-step explanation:

4 0

2 years ago

A raffle offers a first prize of $1000, 2 second prizes of $300, and 20 third prizes of $10 each. If 20000 tickets are sold at 2

Shalnov [3]

Answer:

The expected winnings for a person buying 1 ticket is -0.2.

Step-by-step explanation:

Given : A raffle offers a first prize of $1000, 2 second prizes of $300, and 20 third prizes of $10 each. If 20000 tickets are sold at 25 cents each, find the expected winnings for a person buying 1 ticket.

To find : What are the expected winnings?

Solution :

There are one first prize, 2 second prize and 20 third prizes.

Probability of getting first prize is $\frac{1}{20000}$

Probability of getting second prize is $\frac{2}{20000}$

Probability of getting third prize is $\frac{20}{20000}$

A raffle offers a first prize of $1000, 2 second prizes of $300, and 20 third prizes of $10 each.

So, The value of prizes is

$\frac{1}{20000}\times 1000+\frac{2}{20000}\times 300+\frac{20}{20000}\times 10$

If 20000 tickets are sold at 25 cents each i.e. $0.25.

Remaining tickets = 20000-1-2-20=19977

Probability of getting remaining tickets is $\frac{19977}{20000}$

The expected value is

$E=\frac{1}{20000}\times 1000+\frac{2}{20000}\times 300+\frac{20}{20000}\times 10-\frac{19977}{20000}\times 0.25$

$E=\frac{1000+600+200-4994.25}{20000}$

$E=\frac{-3194.25}{20000}$

$E=-0.159$

Therefore, The expected winnings for a person buying 1 ticket is -0.2.

3 0

3 years ago

Make x the subject of the formula x/a -b=c

horrorfan [7]

Answer:

x ÷ a - b = c

x a-b both side

x = c(a-b)

x = ca - bc

7 0

2 years ago

Read 2 more answers

The probability of selecting an orange marble is 20%

zubka84 [21]

See there is no pink

So probability of selecting a pink is 0 .

The probability of orange is 20% or 0.2

The probability of purple is 30% or 0.3

As there is no color mentioned for rest part at max probability of pink is 0.5 .

But by now it's 0 as it's not mentioned

5 0

2 years ago

If Leslie has a total monthly budget of $4000 and spends $500 on a car payment, What percentage of her monthly budget is dedicat

OLEGan [10]

500 / 4000 = .125= 12.5%

6 0

3 years ago

Read 2 more answers