Mathematics: Blue cassettes hold 45 minutes of music. green cassettes hold 55 minutes of music. if niko has 16 cassettes containing 830 minutes of music, how many are blue, and how many are green?

Blue cassettes hold 45 minutes of music. green cassettes

Ответ:

lolololol21

11.03.2022

B + g = 16b = 16 - g
45b + 55g = 830

45(16 - g) + 55g = 830
720 - 45g + 55g = 830
-45g + 55g = 830 - 720
10g = 110
g = 110/10
g = 11 <=== there are 11 green cassettes

b + g = 16
b + 11 = 16
b = 16 - 11
b = 5 <=== there are 5 blue cassettes

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Ответ:

jothianddeepi

03.02.2020

Mathematics

18/35

Step-by-step explanation:

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Blue cassettes hold 45 minutes of music. green cassettes hold 55 minutes of music. if niko has 16 cassettes containing 830 minutes of music, how many are blue, and how many are green?

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