Adj has a total of 1075 dance rock and country songs on her system. the dance selection is three times the size of the rock selection. the country selection has 105 more songs than the rock selection. how many songs on the system are dance? how many rock? how many country?

So, the DJ has a total of 194 rap songs, 582 dance songs, and 299 country songs. ❤❤

Step-by-step explanation:

Dance (D) + Rap (R) + Country (C) = 1,075 songs

D = 3R

C = R + 105

RAP

Subtract 105 from both side:

(3R) + R + (R + 105) = 1,075

                         -105      -105

Combine all R's:

(3R) + R + R = 970

5R = 970

Divide both sides by 5:

5R = 970

/5         /5

R = 194

DANCE

D = 3(R)

D = 3(194)

D = 582

COUNTRY

C = R + 105

C = 194 + 105

C = 299

So, the DJ has a total of 194 rap songs, 582 dance songs, and 299 country songs. 

an altitude of 15,000 feet

step-by-step explanation:

0.85 or 85%

step-by-step explanation:

1) divide 23 by 27

2) round the decimal to the nearest 10

3) so your answer would be 0.85 or 85%