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igor_vitrenko [27]
2 years ago
8

Liam bought pizza and wings for $27.58. How much change should Liam receive if he gave the clerk three $10 bills?

Mathematics
2 answers:
Eduardwww [97]2 years ago
6 0

Answer:

B. $2.42

Step-by-step explanation:

If Liam gave the clerk three $10 bills, that means he gave the clerk $30. This is because 3 times 10 equals 30.

Find how much change he will receive by subtracting $27.58 from the $30 that Liam gave to the clerk:

30 - 27.58

= 2.42

So, Liam will receive $2.42 in change.

The correct answer is B. $2.42

olchik [2.2K]2 years ago
4 0

Answer:

 2.42

Step-by-step explanation:

3 ten dollar bills = 3*10 = 30 dollars

Subtract the cost of pizza and wings

30 - 27.58

Line up the decimals

 30.00

- 27.58

----------------

  2.42

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The following observations are on stopping distance (ft) of a particular truck at 20 mph under specified experi- mental conditio
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Answer:

see explaination

Step-by-step explanation:

Data : 32.1 , 30.6 , 31.4 , 30.4 , 31.0 , 31.9

Mean X-bar = 31.23

SD = 0.689

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Null Hypothesis : Xbar = mu

Alternate Hypothesis : Xbar > mu

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= (31.23 - 30 ) /(0.689/sqrt(6))

= 4.372

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Since P-vale < 0.01 , we will reject null hypothesis.

The data suggest that true average stopping ditance exceeds the maximum.

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= (31.23 - 31) /(0.65/sqrt(6))

= 0.867

P-value = 0.3859 Answer

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= -2.9

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c)

i) SD = 0.8

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= 0.704

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ii) SD = 0.8

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z = (Xbar - mu) / (SD/sqrt(n))

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The probabilities obtained in part c are comparatively higher than that of part b.

d)

i) For alpha =0.01

z = (Xbar - mu) / (SD/sqrt(n))

=> -2.32 = (31.23 - 31) /(0.65/sqrt(n))

=> (0.65/sqrt(n)) = (31.23 - 31)/-2.32

=> sqrt(n) = (0.65*(-2.32)) / (31.23 - 31)

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ii) For beta =0.10

z = (Xbar - mu) / (SD/sqrt(n))

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=> (0.65/sqrt(n)) = (31.23 - 31)/-1.28

=> sqrt(n) = (0.65*(-1.28)) / (31.23 - 31)

=> n = 13 Answer

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