Answer:
Step-by-step explanation:
Answer:
Number of high quality version downloads = 880
Step-by-step explanation:
Let,
x be the number of standard version songs downloaded
y be the number of high quality version songs downloaded
According to given statement,
x+y=1600 Eqn 1
2.8x+4.1y=5624 Eqn 2
Multiplying Eqn 1 by 2.8 to eliminate x
2.8(x+y=1600)
2.8x+2.8y=4480 Eqn 3
Subtracting Eqn 3 from Eqn 2
(2.8x+4.1y)-(2.8x+2.8y)=5624-4480
2.8x+4.1y-2.8x-2.8y=1144
1.3y=1144
Dividing both sides by 1.3

Hence,
Number of high quality version downloads = 880
Answer:
21... 27.... 38...
Step-by-step explanation:
Add prime numbers to the number in alternate.
4 + 3 = 7
5 + 5 = 10
7 + 7 = 14
10 + 11 = 21
14 + 13 = 27
21 + 17 = 38
Meters: 3.9
centimeters: 390
i hoped i help :)