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irina [24]
3 years ago
7

The scatter plot shows how the cooking time for a beef roast is related to its weight. Which statement is NOT supported by the t

rend in the scatter plot?
A.Each additional pound adds about 12 hour of cooking time.
B.An 11-pound roast will take about 4 hours to cook.
C.A 16-pound roast will take about 6.5 hours to cook.
D.Each additional pound adds about one hour of cooking time.

Mathematics
2 answers:
Kisachek [45]3 years ago
7 0

Answer:

the statement that is not supported by the trend in the scatter plot is d) each additional pound adds about one hour of cooking time.

sergiy2304 [10]3 years ago
5 0

Answer:

<h2>D. Each additional pound adds about one hour of cooking time.</h2>

Step-by-step explanation:

The last statement is not supported by the scatter plot, because the ratio shown is not 1:1, that is, per one hour cooking time one more pound, that is not true.

We can take the first two points as a counterexample that demonstrate this. The first point is (11;4), that is, a 11 pounds beef takes 4 hours to be cooked, then the second point is (12;4.5), that is, a 12 pounds beef takes 4.5 hours to be cooked, just increase half an hour, therefore, the last option is not support by the data showed in the scatter plot.

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Solve for j.<br>-13j - 20 = -8j + 20​
aleksley [76]

Answer:

j = -8

Step-by-step explanation:

-13j - 20 = -8j + 20​

Add 13 j to each side

-13j+13j - 20 = -8j+13j + 20

-20 = 5j+20

subtract 20 from each side

-20-20 = 5j +20-20

-40 = 5j

Divide by 5

-40/5 = =5j/5

-8 =j

8 0
3 years ago
Y = 15x <br> y = 25 + 12.5x
swat32

Substitute y = 15x to the equation y = 25 + 12.5x:

15x = 25 + 12.5x     <em>subtract 12.5x from both sides</em>

2.5x = 25    <em>divide both sides by 2.5</em>

x = 10

Substitute the value of x to the equation y = 15x:

y = (15)(10)

y = 150

<h3>Answer: x = 10 and y = 150</h3>
7 0
3 years ago
A given population proportion is .25. What is the probability of getting each of the following sample proportions
anyanavicka [17]

This question is incomplete, the complete question is;

A given population proportion is .25. What is the probability of getting each of the following sample proportions

a) n = 110 and = p^ ≤ 0.21, prob = ?

b) n = 33 and p^ > 0.24, prob = ?

Round all z values to 2 decimal places. Round all intermediate calculation and answers to 4 decimal places.)

Answer:

a) the probability of getting the sample proportion is 0.1660

b) the probability of getting the sample proportion is 0.5517

Step-by-step explanation:

Given the data in the questions

a)

population proportion = 0.25

q = 1 - p = 1 - 0.25 = 0.75

sample size n = 110

mean = μ = 0.25

S.D = √( p( 1 - p) / n ) = √(0.25( 1 - 0.25) / 110 ) √( 0.1875 / 110 ) = 0.0413

Now, P( p^ ≤ 0.21 )

= P[ (( p^ - μ ) /S.D) < (( 0.21 - μ ) / S.D)

= P[ Z < ( 0.21 - 0.25 ) / 0.0413)

= P[ Z < -0.04 / 0.0413]

= P[ Z < -0.97 ]

from z-score table

P( X ≤ 0.21 ) = 0.1660

Therefore, the probability of getting the sample proportion is 0.1660

b)

population proportion = 0.25

q = 1 - p = 1 - 0.25 = 0.75

sample size n = 33

mean = μ = 0.25

S.D = √( p( 1 - p) / n ) = √(0.25( 1 - 0.25) / 33 ) = √( 0.1875 / 33 ) = 0.0754

Now, P( p^ > 0.24 )  

= P[ (( p^ - μ ) /S.D) > (( 0.24 - μ ) / S.D)

= P[ Z > ( 0.24 - 0.25 ) / 0.0754 )

= P[ Z > -0.01 / 0.0754  ]

= P[ Z > -0.13 ]

= 1 - P[ Z < -0.13 ]

from z-score table

{P[ Z < -0.13 ] = 0.4483}

1 - 0.4483

P( p^ > 0.24 )  = 0.5517

Therefore, the probability of getting the sample proportion is 0.5517

6 0
3 years ago
Each meat loaf use 3/4lb of meat how much for 8 loaves
Yakvenalex [24]
6 pounds of meat

3 / 4 * 8 = 6
3 0
3 years ago
Read 2 more answers
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Genrish500 [490]

Answer:

Josie because 25 miles in 5 hours is 5 miles every hour and Greta runs 4.5 miles evry hour

Step-by-step explanation:

5 0
3 years ago
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