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Luba_88 [7]
3 years ago
11

After a 75% ​reduction, you purchase a new DVD player DVD player on sale for ​$ 180. What was the original price of the DVD play

er DVD player​?
Mathematics
1 answer:
Mkey [24]3 years ago
8 0
$240

You can do this by taking the sale price and dividing by the percentage.
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A jar contains 6 blue, 4 red, and 2 green marbles. What is the probability that three blue marbles are drawn with out replacemen
ch4aika [34]

Answer:  The required probability is 9.09%.

Step-by-step explanation:  Given that a jar contains 6 blue, 4 red, and 2 green marbles.

We are to find the probability that three blue marbles are drawn with out replacement.

Total number of marbles = 6 + 4 + 2 = 12.

After drawing one blue marble, we are left with total 11 marbles. And after drawing the second blue marble, we are left with total 10 marbles.

Therefore, the probability of drawing three blue marbles without replacement is given by

p\\\\\\=\dfrac{^6C_1}{^{12}C_1}\times\dfrac{5C_1}{^{11}C_1}\times\dfrac{^4C_1}{^{10}C_1}\\\\\\=\dfrac{6}{12}\times\dfrac{5}{11}\times\dfrac{4}{10}\\\\\\=\dfrac{1}{11}\\\\\\=\dfrac{1}{11}\times100\%\\\\=9.09\%.

Thus, the required probability is 9.09%.

6 0
4 years ago
12 POINTS!!!<br><br><br> Find x. (Hint. Draw an auxiliary line
padilas [110]

Answer:

30

Step-by-step explanation:

x+50=180(संगत कोन भएकाले )

x=180-50

X=130

अब,

130-100=30

4 0
3 years ago
Which of the following trigonometric inequalities has no solution over the interval 0 ≤ x ≤ 2pi radians?
valentinak56 [21]

Answer:

A .cos(x)<1

Step-by-step explanation:

According to the first inequality

cos(x)<1

x < arccos 1

x<0

This therefore does not have a solution within the range 0 ≤ x ≤ 2pi

x cannot be leas than 0. According to the range not value, 0≤x which is equivalent to x≥0. Thus means otvis either x = 0 or x> 0.

For the second option

.cos(x/2)<1

x/2< arccos1

x/2<0

x<0

This inequality also has solution within the range 0 ≤ x ≤ 2pi since 0 falls within the range of values.

For the inequality csc(x)<1

1/sin(x) < 1

1< sin(x)

sinx>1

x>arcsin1

x>90°

x>π/2

This inequality also has solution within the range 0 ≤ x ≤ 2pi since π/2 falls within the range of values

For the inequality csc(x/2)<1

1/sin(x/2) < 1

1< sin(x/2)

sin(x/2)> 1

x/2 > arcsin1

X/2 > 90°

x>180°

x>π

This value of x also has a solution within the range.

Therefore option A is the only inequality that does not have a solution with the range.

6 0
4 years ago
Three companies sell their apple juice in different sized bottles jada is calculating the unit prices of each bottle and will co
kati45 [8]
The answer is dividing each bottle size by its cost I took the test and I got it right <span>
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4 0
3 years ago
Read 3 more answers
Anyone knows the answer
vesna_86 [32]

Answer:

it might be 390

Step-by-step explanation:

hope this helps

7 0
3 years ago
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