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xbeatdroperzx
23.07.2020 •
Mathematics
Which fraction listed is between 4/7 and 6/7
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Ответ:
5/7
Step-by-step explanation:
4/7 < x < 6/7
Let x be the middle value of 4/7 and 6/7.
(4/7 + 6/7)/2
(10/7)/2
10/14 = 5/7
4/7 < 5/7 < 6/7
Ответ:
Sam will need 9 liters of blue paint.
and 3 liters of white paint.
Step-by-step explanation:
Paint is mixed 3 parts blue to 1 part white.
i.e. if 3x liters of blue paint is taken than x liters of white paint is needed.
Sam needs 12 liters of paint.
i.e. 3x+x=12
⇒ 4x=12
Dividing both sides by 4,we get
x=3
Blue paint=3x=3×3=9 liters
White paint=x=3 liters
Hence, Sam will need 9 liters of blue paint.
and 3 liters of white paint.