Mrs Tan bought 4 times as many pens as notebooks and each notebook cost $8.20 more than each pen. She spent $26 more on the book s than the pens. Mrs Tan spent $394 altogether on the pond and notebooks, how much was the cost of a notebook?
1 answer:
Let x be the cost of 1 pen
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<h3>
Answer: A) 99% </h3>
Explanation:
The larger the confidence level, the wider the confidence interval gets. Choice A provides the largest such confidence level.
It's like trying to catch an elusive fish. The wider the net, the more confident that you are likely to catch the fish. The size of the net can be a sort of measure of the confidence level.
-6(3x + 1) I’m sure this is it
Apologies if it’s dark but here’s the work for your question. If you need an explanation, let me know.
Slope = (9-3)/(5-2) = 6/3 = 2
Answer:
y=20x+150
Step-by-step explanation:
Sandy has 150 dollars ALREADY in her account, so each time she earns the money it is building upon. 20x (x because we don't know for how many months.)
Hope this helps ;)
