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ipn [44]
3 years ago
9

WILL GIVE BRAINLIEST answer!!! Solve plz now

Mathematics
1 answer:
Stels [109]3 years ago
7 0
5+3n=21-n////5=21+2n////-16=2n////-8=n, but you need to find the absolute value, so yo get n=8
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Eric works at the deli on weekends to earn extra money. He makes $10 per hour making sandwiches, and $14 per hour delivering ord
artcher [175]

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1/2(10s+14d)

he saves $53 this weekend

Step-by-step explanation:

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3 years ago
A zoning board in Pine County is interested in estimating the proportion of its residents in favor of larger school zones in tha
Levart [38]

Answer:

C) At the 95% confidence level, the estimate of 0.48 is within 0.02 of the true proportion of county residents in favor of larger school zones in that county.

Step-by-step explanation:

x% confidence interval:

A confidence interval is built from a sample, has bounds a and b, and has a confidence level of x%. It means that we are x% confident that the population mean is between a and b.

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95% CI between 0.48 - 0.02 = 0.46 and 0.48+0.02 = 0.5.

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2 years ago
Rip XXXTentacion ........
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2 years ago
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The frequency distribution shows the number of registered motor vehicles for a random sample of 200 California households.
erastovalidia [21]

Answer:

1). Mean = 2.275

2). Median = 2 vehicles

Step-by-step explanation:

From the given table,

Number of vehicles (x)         Frequency (f)      (f)×(x)             Cumulative freq.

                  0                                    11                  0                           11

                  1                                     52                52                        63

                  2                                    66                132                      129

                  3                                    35                105                      164

                  4                                    19                  76                       183

                  5                                    12                  60                       195

                  6                                     5                  30                       200

                                                                          \sum (f\times x) = 455

Number of households = 200

Mean = \sum \frac{f.x}{n}

          = \frac{455}{200}

         = 2.275

Median = value of \frac{(n+1)}{2}th observation

             = value of \frac{201}{2}th observation

             = Value of 100.5th observation

             = Since 100.5th observation lies in the row of cumulative freq. = 129

             = 2

Therefore, median number of registered vehicles per California household

= 2 vehicles

6 0
3 years ago
There are 26.2 miles in a marathon write the number of the miles using a fraction
Nostrana [21]
26.2 miles using a fraction is 131/5
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