Hi
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1) rewrite the equation by completing the square
(X+4)^2=9
2) what are the solution to the equation
Answer A= X=-4 plus and minus 3
Your answer is 2,200 pupils.
If 990 is equal to 45% of the total amount of pupils, then to find 1% we can divide both 45 and 990 by 45.
990 ÷ 45 = 22, which is 1%, so then we multiply 22 by 100 to get 100% of the pupils, which gives us 2,200.
I hope this helps!
For this case, the first thing you should keep in mind is that:
1 week = 7 days
Assuming Nancy eats Granola from Monday to Friday, then we have Nancy eat granola 5 days a week.
Therefore, it is in Nancy's interest to buy granola in packs of 5.
So, Nancy can eat granola almost every day.
Answer:
the most cost-effective option is:
C: buying a pack of five