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3 years ago

Michael has a $35 Starbucks gift card. He

Mathematics

1 answer:

Eddi Din [679]3 years ago

5 0

Answer:

Each Caramel Macchiato is $5.60

Step-by-step explanation:

You could write the equation 5x+7=35

x stands for the price of each macchiato

the +7 is the $7 left-over after getting 5 macchiatos.

Then solve the equation.

1) subtract 7 on both sides

5x=28

2) divide by 5 on both sides

x=5.60

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Solve the inequality -6c< -12

sweet [91]

Answer: c<2

Step-by-step explanation:

-6c<-12

c<-12/-6

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3 years ago

Milk is a good source of many vitamins that can help us stay healthy. FDA recommends that the average vitamin A concentration fo

Lelechka [254]

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The degrees of freedom for this sample are 27.

The sample size to get a margin of error equal or less than 0.3656 is n=4450.

Step-by-step explanation:

The degrees of freedom for calculating the value of t are:

$df=n-1=28-1=27$

With 27 degrees of freedom and 95% confidence level, from a table we can get that the t-value is t=2.052.

The sample size to get a margin of error equal or less than 0.3656 can be calculated as:

$MOE=t\cdot s/\sqrt{n}\\\\n=\left(\dfrac{t\cdot s}{MOE}\right)^2=\left(\dfrac{2.052\cdot 11.8841}{0.3656}\right)^2=66.7^2\\\\\\n=4449.13\approx4450$

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3 years ago

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Feliz [49]

I believe it’s the second table, (5, 25), (7, 49), (9, 81).

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