Each side of the regular hexagon below has the same measure. If a model of the hexagon is made by using a scale factor of 6, whi
2 answers:
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Answer:
The cost of 12 trading cards are less than $12 so we can say that unit price of the card is lesser than $1.
Unit price per card is $0.46.
Step-by-step explanation:
Given:
Cost of 1 package of trading card = $5.52
Number of trading card in a package = 12
We need to explain how can we tell that the unit price per card is less than $1.
Also We need to unit price per card.
Solution:
Now we can see that;
Cost of 1 package of trading cards is $5.52
And we know that;
1 package contains 12 trading cards.
It means that;
Cost of 12 trading cards is $5.52.
From above we can say that;
If the cost of 12 trading cards were $12 or more than $12 than we would say that unit price of the card is $1 or greater than $1 respectively.
But the cost of 12 trading cards are less than $12 so we can say that unit price of the card is lesser than $1.
Now we will find the unite price per car.
12 trading cards =$5.52
1 trading card = Cost of 1 trading card.
Using Unitary method we get;
Cost of 1 trading card =
Hence Unit price per card is $0.46.
Answer:
We conclude that the lifetime of tires is less than 30,000 miles.
Step-by-step explanation:
We are given the following in the question:
Population mean, μ = 30,000 miles
Sample mean, = 29,400 miles
Sample size, n = 54
Alpha, α = 0.05
Population standard deviation, σ =1200 miles
First, we design the null and the alternate hypothesis
We use One-tailed z test to perform this hypothesis.
Formula:
Putting all the values, we have
Now,
Since,
We reject the null hypothesis and accept the alternate hypothesis.
Thus, we conclude that the lifetime of tires is less than 30,000 miles.