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Morgarella [4.7K]
3 years ago
12

Cinderella made many new friends at the castle. After asking her fairy godmother to help, she invited her friends to go on a pic

nic. There were 36 heads and 104 legs in the group of horses, carriages, and riders. How many horses and how many people were there?
Mathematics
2 answers:
aliina [53]3 years ago
7 0

Answer:

10

Step-by-step explanation:

Sergio [31]3 years ago
3 0

Answer:

¿Qué tipo de trabajo estás haciendo?

Step-by-step explanation:

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The value of y varies directly with x. When y=80, x=1/2. What is the value of y when x is 2 1/4?
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Using the formula y = kx 
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4 0
3 years ago
20 pts to whoever helps!!
VladimirAG [237]
<h3>Answer: B) 31.348</h3>

======================================

Work Shown:

We will never use the alpha = 0.05 value when computing the test statistic. So we can ignore alpha for this particular problem.

-------

n = 40 is the sample size.

s = 2.6 is the sample standard deviation

\sigma = sigma = 2.9 is the population standard deviation (ie the claimed standard deviation for all the pay phones)

Test Statistic for chi-square

\chi^2 = \frac{(n-1)*s^2}{\sigma^2}\\\\\chi^2 = \frac{(40-1)*(2.6)^2}{(2.9)^2}\\\\\chi^2 = \frac{39*6.76}{8.41}\\\\\chi^2 = \frac{263.64}{8.41}\\\\\chi^2 \approx 31.3483947681332\\\\\chi^2 \approx 31.348\\\\

7 0
3 years ago
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Trevor spent $27 and now has no money left. What did he have before his purchase
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Answer:$27

Step-by-step explanation:

x-27=0

0+27=27

27-27=0

8 0
2 years ago
Can anyone help me solve these linear systems using substitution?
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Answer:

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Step-by-step explanation:

See attached images

4 0
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HELP I will mark branliest!!!!
Klio2033 [76]

Answer:

Rah&fyjftyhh

Step-by-step explanation:

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