Some people use a rule to see how many hours a child should sleep at night. Subtract the child's age in years from 30, then divi
de by 2.
Samantha is 14 years old she wakes up every morning at 7 am. Use the rule to work out what time she should go to sleep?
1 answer:
It would be 8 hours. 30-14=16. 16/2=8.
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You are right Elrd23 .......................
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Answer:
c = 6
Step-by-step explanation:
2(4 + cy) = 12y + 8
8 + 2cy = 12y + 8
12y + 8 = 8 + 2cy
12y - 2cy = 8 - 8
2y (6 - c) = 0
Divide through by 2y
(6 - c) = 0
c = 6
