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andriy [413]
3 years ago
13

Charlie saves $21.45 each month for 6 months.In the seventh month, he only saves $10.60.How much money will Charlie have after 7

months?
Mathematics
1 answer:
Tomtit [17]3 years ago
8 0
$21.45 x 6 = $128.7
$128.7 + $10.60 = $139.3

Charlie will have saved $139.3 in 7 months
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Answer:

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3 years ago
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boyakko [2]

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Step-by-step explanation:

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And baed on the options we see that the only possibility would be:

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Step-by-step explanation:

We want to know for which value we would REJECT the null hypothesis.

So then our significance level is \alpha=0.05 and we need to remember these two conditions:

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