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3 years ago

Choose the best answer.

Mathematics

1 answer:

baherus [9]3 years ago

4 0

Answer:

B. 5x+3y=325

Step-by-step explanation:

the total value of the strawberries and blueberries sold is equal to 325. we have to multiple the variable for each fruit with the amount its sold for in order to get this equation.

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-1/2 ^5 = Solve as a Fraction

Oksanka [162]

Answer:

-1/32

Step-by-step explanation:

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3 years ago

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The reacttimes data set has 50 observations of human reaction times to a physical stimulus. The reaction times are named times a

scoundrel [369]

Solution: The formula for mean is:

$Mean=\frac{\sum x}{n}$

Where:

$\sum x$ is the sum of given observations

$n$ is the number of observations

$\sum x=87.12$

$n=50$

$\therefore Mean =\frac{87.12}{50}= 1.74$ rounded to two decimal places

To find the median, we need to first arrange the data in ascending order but we are already given the data in ascending order.

Therefore, the median is:

$Median=\left(\frac{n+1}{2} \right)^{th} item$

$=\left(\frac{51}{2} \right)^{th} item$

$=25.5^{th} item$

$=1.52+0.5(1.54-1.52)$

$=1.52+0.01$

$=1.53$

Therefore, the median = 1.53

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3 years ago

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san4es73 [151]

Answer: Question 1

a)5.47

b)4.53

Step-by-step explanation:

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3 years ago

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GrogVix [38]

Answer:b

Step-by-step explanation:

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4 years ago

Mean of four numbers a ,b, c, and d is 8 and mean of seven

Nana76 [90]

Answer:

17 1/3 or 17.33

Step-by-step explanation:

Mean of four numbers a, b, c, and d is 8:

(a + b + c + d)/4 = 8
⇒ a + b + c + d = 32

Mean of seven numbers x, y, z, a, b, c and d is 12:

(x + y + z + a + b + c + d)/7 = 12

Substitute the sum of 4 numbers:

x + y + z + 32 = 7*12
x + y + z = 84 - 32
x + y + z = 52

Mean of x, y and z is:

52/3 = 17 1/3 or 17.33

4 0

3 years ago