Coleton just bought a new mp3 player. it has a capacity of 1,000 minutes. he has already downloaded 304 minutes of music. each song he can download is 4 minutes in length. coleton wants to know how many more songs he can download until the mp3 player is full. is 76 songs a reasonable answer?

No 76 is not a reasonable answer. 174 is a reasonable answer.

Step-by-step explanation:

76×4=304

304+304=608

375×4=1500

174×4=696

696×4=2784

x = ±sqrt(10)

step-by-step explanation:

5 - 2x² = -15

subtract 5 from each side

5-5 - 2x² = -15-5

-2x^2   = -20

divide by -2 on each side

-2x^2   /-2= -20/-2

x^2 =10

take the square root on each side

sqrt(x^2 )=±sqrt(10)

x = ±sqrt(10)

check:

5 - 2x² = -15

+sqrt(10)

5 - 2(sqrt(10))² = -15

5 -2(10) = -15

5 -20 = -15

-15 = -15

-sqrt(10)

5 - 2(-sqrt(10))² = -15

5 -2(10) = -15

5 -20 = -15

-15 = -15