Answer:
Step-by-step explanation:
Hi there!
Let represent "the number".
A number added by 7 is the same as that number times four minus eleven.
A number added by 7 ⇒
Is the same as ⇒
The number times four ⇒
Minus eleven ⇒
I hope this helps!
This is 7th grde homework and i need help!!
1 answer:
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Answer:
the clock will represent 4.5 billion years as 2.67 hours
Step-by-step explanation:
Data provided in the question:
Total time of history of Earth = 4.5 billion years
Representation of total time of history of Earth on clock = 12 hours
Therefore,
4.5 billion years = 12 hours
or
⇒ 1 billion year =
or
⇒ 1 billion year = 2.67 hours
Hence,
the clock will represent 4.5 billion years as 2.67 hours