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Scrat [10]
4 years ago
15

PLEASE HELP ME GIVING Brainliest!!!

Mathematics
2 answers:
Kazeer [188]4 years ago
7 0

Answer:

107 and 4/5 or 107.8

Step-by-step explanation:

14 times 38.5 is 539.

539 times 1/5 is 107 and 4/5 or 107.8

evablogger [386]4 years ago
5 0

Answer:

$106.73

Step-by-step explanation:

14 x 38 ½ = 533.68

533.68 ÷ 5 = 106.73.   Keyleanis paid Claudia $106.73

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If 90 is 80% of a value, what is that value?
Anna71 [15]
So 90 is 4/5 of a number.

4/5n=90

4n=450

n=450/4

n=112.5
7 0
4 years ago
Read 2 more answers
The distance from Joe's house to his school is 3/4 of a mile. If Joe goes to school and comes back home, what is the total dista
faust18 [17]
The answer is D. 6/8 of a mile.
3 0
4 years ago
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A new runner has decided to purchase a new pair of running shoes. He has narrowed his choices to two brands, each of which would
Brut [27]

Answer:

Paired difference t test

Step-by-step explanation:

The paired difference t test is a type of statistical test which is used to examine if difference exists in th population mean of two samples. The paired difference test usually involves samples taken within subjects. That is, the sample mean for each set of measurement is taken from the Same subject, In the scenario described above, the subjects which are the 6 veteran runners each wore each of the two shoe brands, this means that two readings were produced by each runner ; one reading for brand A and the other brand B.

The difference between the two readings are taken for each runner and used to perform a hypothesis test:

t = μd/ (s/√n)

s = sample standard deviation ; n = sample size ; μd = mean difference

7 0
3 years ago
A company manufactures exercise balls for gyms. Type A is a spherical ball with a radius of 12 inches. Type B is a hemisphere th
Readme [11.4K]
We know that
[surface area of sphere]=4πr²
[surface area of hemisphere]=2πr²

 (sphere)
r=12 in
[surface area of sphere ]=4π12²--------> 576π in²

(hemisphere)
r=12 in[surface area of hemisphere ]=2π12²--------> 288π in²

[the ratio of the surface area of sphere to the surface area of hemisphere]
=576π/288π-------> 2

the answer is
the ratio is 2
5 0
3 years ago
Read 2 more answers
A sample of 100 people is classified by gender (male/female) and by whether they are registered voters. The sample consists of 8
uysha [10]

Answer:

12

Step-by-step explanation:

Given :

                                    Male         Female        Total

Registered                                                          60

Non registered                                                   40

Total                          20                  80    

Solution :

N= 100

Formula of expected frequency = E_{ij}=\frac{T_i \times T_j}{N}

E_{ij}= expected frequency for the ith row/jth columm.

T_i = total in the ith row

T_j= total in the jth column

N = table grand total.

So, using formula  E_{11}=\frac{T_1 \times T_1}{100}

E_{11}=\frac{60 \times 20}{100}

E_{11}=12

E_{12}=\frac{T_1 \times T_2}{100}

E_{12}=\frac{60 \times 80}{100}

E_{12}=48

E_{21}=\frac{T_2 \times T_1}{100}

E_{21}=\frac{40 \times 20}{100}

E_{21}=8

E_{22}=\frac{T_2 \times T_2}{100}

E_{22]=\frac{80 \times 40}{100}

E_{22}=32

Expected frequency table

                                    Male         Female        Total

Registered                  12                  48            60

Non registered           8                   32             40

Total                           20                  80    

So, the expected frequency for males who are registered voters are  E_{11}=12

5 0
3 years ago
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