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Elza [17]
3 years ago
10

The percentage, P, of U.S. voters who use punch cards or lever machines in national elections can be modeled by the formula: P =

−2.5x + 63.1 where x is the number of years after 1994. In which years will fewer than 38.1% of U.S. voters use punch cards or lever machines?
Mathematics
1 answer:
Ne4ueva [31]3 years ago
7 0

Answer:

From 2004 onwards, fewer than 38.1% of U.S. voters use punch cards or lever machines

Step-by-step explanation:

The percentage of U.S. voters who use punch cards or lever machines in national elections, in x years after 1994, is given by the following equation:

P(x) = -2.5x + 63.1

In which years will fewer than 38.1% of U.S. voters use punch cards or lever machines?

In x years after 1994 onwards.

x is found when P(x) = 38.1.

So

P(x) = -2.5x + 63.1

38.1 = -2.5x + 63.1

2.5x = 25

x = \frac{25}{2.5}

x = 10

From 2004 onwards, fewer than 38.1% of U.S. voters use punch cards or lever machines

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Answer:

10 cents

Step-by-step explanation:

In order to answer this question we have to find how much each chicken strip costs individually.

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To find how much each piece costs we have to divide $2.40 by 4. Like this:

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In the 4 piece, every chicken strip costs .60 cents.

Now, let's do the 6 piece.

Like before we are going to divide $3.00 by 6.

\frac{3.00}{6} = .50

In the 6 piece, every chicken strip costs .50 cents.

Therefore, customers save 10 cents when they buy the larger quantity.

<em>I hope this helps!</em>

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7 0
3 years ago
What is the slope of the line whose equation is 12=4x−6y?<br><br> Enter your answer in the box.
swat32
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Boxes of granola are on sale at a price of 2 for $4.50. There are 12 ounces of
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Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
g In a one-tail hypothesis test where you reject H0 only in the lower tail, what is the p-value if Z STAT
zepelin [54]

Answer:

The P-value is 0.0166.

Step-by-step explanation:

<u>The complete question is:</u> In a​ one-tail hypothesis test where you reject H0 only in the lower ​tail, what is the p-value  if ZSTAT = -2.13.

We are given that the z-statistics value is -2.13 and we have to find the p-value.

Now, the p-value of the test statistics is given by the following condition;

                    P-value = P(Z < -2.13) = 1 - P(Z \leq 2.13)

                                  = 1 - 0.9834 = <u>0.0166</u>

Assuming that the level of significance is 0.10 or 10%.

The decision rule for rejecting the null hypothesis based on p-value is given by;

  • If the P-value of the test statistics is less than the level of significance, then we have sufficient evidence to reject the null hypothesis.
  • If the P-value of the test statistics is more than the level of significance, then we have insufficient evidence to reject the null hypothesis.

Here, the P-value is more than the level of significance as 0.0166 > 0.10, so we have insufficient evidence to reject the null hypothesis, so we fail to reject the null hypothesis.

3 0
3 years ago
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