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Stella [2.4K]
3 years ago
12

Josh at has a collection of 1,200 music CDs. He considers 1/6 of his collection rock music. Of the rock music CDs 20 percent by

solo artist.Of the solo artist 2/5 are by female artist. How many CDs are by solo artists
Mathematics
1 answer:
SpyIntel [72]3 years ago
5 0

Answer:

Step-by-step explanation:

Josh has a collection of 1,200 music CDs. He considers 1/6 of his collection rock music. This means that the number of rock music CDs that he has is

1/6 × 1200 = 200

Of the rock music CDs, 20 percent are by solo artist. This means that the number of CDs by solo artist is

20/100 × 200 = 40

Of the solo artist 2/5 are by female artist. It means that the number done by female solo artists is

2/5 × 40 = 16

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I’ll give brainliist
34kurt

Step-by-step explanation:

The line is

j --------K----------M---------N---------L

6. 4. 4. 4

JN = 14

KM = 4

KM = MN = LN =4

JK = 14 - (KM+MN)

JK = 14 - 8 = 6

JK = 6

MN = 4

LJ = 18

KN = 8

MJ = 10

NL = 4

3 0
2 years ago
Gina started with the circle (x−2)2+y2=16. She translated it 4 units left and 1 unit down. Then she reduced the radius by 1 unit
olchik [2.2K]

Answer:

(x + 2)² + (y + 1)² = 9

Step-by-step explanation:

Gina started with a circle with the given equation as,

(x - 2)² + (y - 0)² = 16

Since, standard equation of a circle is,

(x - a)² + (y - b)² = r²

Here (a, b) is the center of the circle and 'r' is the radius.

Therefore, from the given equation of the circle,

Center of the circle → (2, 0)

Radius of the circle → √16 = 4 units

She translated this circle 4 units left and 1 unit down.

Rule for the new center after translation will be,

(x, y) → (x - 4, y - 1)

(2, 0) → (2 - 4, 0 - 1)

         → (-2, -1)

Coordinates of the new center → (-2, -1)

Then she reduced the radius by 1 units.

Therefore, radius of the new circle = 4 - 1 = 3 units

Now we substitute these values in the standard equation of the circle to get the equation of the new circle.

(x + 2)² + (y + 1)² = 3²

(x + 2)² + (y + 1)² = 9

5 0
3 years ago
Mark the statements that are true.
lara [203]

Answer:

Correct answers:

A. An angle that measures \frac{\pi}{6}  radians also measures  30^o

C. An angle that measures 180^o  also measures \pi  radians

Step-by-step explanation:

Recall the formula to transform radians to degrees and vice-versa:

\angle\,radians=\frac{\pi}{180^o} \,* \,\angle degrees\\  \\\angle\,degrees=\frac{180^o}{\pi} \,* \,\angle radians

Therefore we can investigate each of the statements, and find that when we have a \frac{\pi}{6}  radians angle, then its degree formula becomes:

\angle\,degrees=\frac{180^o}{\pi} \,* \,\angle radians\\\angle\,degrees=\frac{180^o}{\pi} \,* \,\frac{\pi}{6} \\\angle\,degrees=\frac{180^o}{6} \\\angle\,degrees=30^o

also when an angle measures 180^o  , its radian measure is:

\angle\,radians=\frac{\pi}{180^o} \,* \,\angle degrees\\\angle\,radians=\frac{\pi}{180^o} \,* \,180^o\\\angle\,radians=\pi

The other relationships are not true as per the conversion formulas

7 0
3 years ago
Laura got a discount of 100 dollars on her purchase of a 5775 bed.What is the percent of decrease?
matrenka [14]
Remember that percent means parts out of 100
x/100

discount is the decrease
so we divide the decrease by the original total and get
100/5775=0.0173
convert to fraction
0.0173/1
make bottom number 100
multiply by 100/100
1.73/100=1.73%
round
2%
5 0
3 years ago
An elephant walked 30 miles in 3 hours ,how fas was the elphant walking?​
Kryger [21]

Answer:

10 miles per hour

Step-by-step explanation:

speed= distance/time

30/3

=10

7 0
3 years ago
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