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3 years ago

WARNING IF YOU ANSWER THIS QUESTION INCORRECTLY OR TRY TO ANSWER WITH FOOLISHNESS YOU WILL GET REPORTED

Mathematics

1 answer:

frozen [14]3 years ago

3 0

The solution is attached as a word file.

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A television was sold at a gain of 20% after allowing a discount of 20% on its marked price . Had it been sold after allowing 25

Novay_Z [31]

Answer: The marked price is 40% more than the original price

40% - 25% = 15% or 1450

Marked price = 140%

140 × 1450 ÷ 15 = 13533. 33

Step-by-step explanation:

6 0

3 years ago

A radio disc jockey has 8 songs on this upcoming hour's playlist: 2 are rock songs, 4 are reggae songs, and 2 are country songs.

mart [117]

Answer:

$\displaystyle \frac{1}{28}$

Step-by-step explanation:

we are given 8 songs

2 are rock. 4 are reggae, 2 are country

we want to figure out the probability of getting both reggae songs

notice that, they aren't replacing thus it's an independent probability

recall that,

$\displaystyle \rm P(A \: \text{and} \: B) = P(A) \times P(B \mid A)$

P(A) represents the chance of getting our subject first time and P(B|A) represents the chance of getting the same subject second time

let's figure out P(A)

we have 2 reggae songs

and total 8 songs

therefore

$\displaystyle\rm P(A) = \frac{2}{8} = \frac{1}{4}$

let's figure out P(B|A)

since we took a reggae song before now we have only a reggae song

and total 8-1=7

therefore

$\displaystyle \rm P(B\mid A) = \frac{1}{7}$

Altogether

$\displaystyle \rm P(A \: \text{and} \: B) = \frac{1}{4} \times \frac{1}{7}$

simplify multiplication:

$\displaystyle \rm P(A \: \text{and} \: B) = \frac{1}{28}$

And we are done!

7 0

3 years ago

Solve the following equation for x. x = -2 x = 2 x = -17 x = -7

uranmaximum [27]

Answer:

x = -7

Explanation:

(x - 5) = -12, since we divided (x - 5) by 2 to get -6. Add 5 to -12 and you'll have x by itself with your answer right beside it.

3 0

3 years ago

Explain why the roller coaster's potential energy is greater at point 1 than at point 4.

Leno4ka [110]

The roller coasters potential energy is greater at point 1 because, it's the beginning and the energy hasn't yet been used. When it reaches point 4 the energy is low because it was just moving.

I hope this helps I might be wrong and there was no picture to go along with the problem :)

6 0

3 years ago

Read 2 more answers

Perimeter of a rectangle is 11 inches. The length of the rectangle is 1/2 inches what is the width of the rectangle?

Mrrafil [7]

Answer:

Step-by-step explanation:

perimeter= 2(L)+2(W)

11 =2(1/2)+2W

11=1+2W

11-1=2W

10=2W

Both sides divided by 2

therefore The width is 5

7 0

3 years ago

**WARNING** IF YOU ANSWER THIS QUESTION INCORRECTLY OR TRY TO ANSWER WITH FOOLISHNESS YOU WILL GET REPORTED

WARNING IF YOU ANSWER THIS QUESTION INCORRECTLY OR TRY TO ANSWER WITH FOOLISHNESS YOU WILL GET REPORTED