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Misha Larkins [42]
4 years ago
8

Tracy took 12 pictures during 4 days of vacation. How many days will it take for Tracy to take 21 pictures ?

Mathematics
2 answers:
FromTheMoon [43]4 years ago
7 0
Sounds like Tracy is averaging three photos a day so she would take 21 in seven days
mart [117]4 years ago
3 0
P=pictures
d=days of vacation
12p=4d
divide both sides by 4 to get
3p=d
3pictures every day
21p=_d, 21/3=7
7 days!
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Answer:

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Step-by-step explanation:

f(x)=-3(x+2)^2+9

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f(2)=-3(4)(4)+9

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Step-by-step explanation:

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Write the phrase as an expression. Then evaluate when y=20.
alisha [4.7K]

Answer:

Q=\frac{40}{y-16}

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Step-by-step explanation:

Let the quotient be represented by 'Q'.

Given:

The difference of a number 'y' and 16 is y-16

Quotient is the answer that we get on dividing two terms. Here, the first term is 40 and the second term is y-16. So, we divide both these terms to get an expression for 'Q'.

The quotient of 40 and y-16 is given as:

Q=\frac{40}{y-16}

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Zinaida [17]

Answer:

(0.084,0.396)

Step-by-step explanation:

The 99% confidence interval for the proportion of customers who use debit card monthly can be constructed as

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0.24-0.155832

By rounding to three decimal places we get,

0.084

The 99% confidence interval for the proportion of customers who use debit card monthly is (0.084,0.396).

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