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death2833
28.09.2019 •
Mathematics
Stella wrote 1/7 of a page in 1/15 of a minute. how many minutes does it take her to write a full page?
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Ответ:
x < 16
Step-by-step explanation:
Let the number be x
Four time the number = 4x
Eight less than four times the number = 4x - 8
Eight less than four times the number is less than 56,
that is , 4x - 8 < 56
4x - 8 + 8 < 56 + 8 [ adding both sides by 8 ]
4x + 0 < 64
4x < 64 [ divide both sides by 4 ]
x < 16