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3 years ago

12

There were three went on a hike. One was 2 3/4, MI long, and the other 1 1/2 and the last one 3 3/8. In decimals what was the to

tal miles?

1 answer:

lana66690 [7]3 years ago

3 0

7 5/8 miles or in decimal form 7.625 miles

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On graph paper, graph the two lines associated with the equation in this system of equation

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<span>3x + 2y = 13
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3 years ago

If the mean of the data set is 35 apples find the number of apples on the Granny Smith tree

alisha [4.7K]

Answer:

$N=\frac{\sum x_{i} }{35}$

Step-by-step explanation:

Given

The mean of the data set is 35 apples.
Let's call $N$ the number of apples.

The means is defined as the quotient between the sum of all elements and the total number.

Mathematically, it would be defined as

$x=\frac{\sum x_{i} }{N}$

But, we know that the mean is equal to 35.

$35=\frac{\sum x_{i} }{N}$

Then, we solve for $N$

$N=\frac{\sum x_{i} }{35}$

As you can see, the total number of apples depends on the sum of all elements of the data set.

For example, if the sum of all elements is 700, the total number of apples would be

$N=\frac{700}{35}=200$

Therefore, the expression that represents the total number of apples is

$N=\frac{\sum x_{i} }{35}$

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3 years ago

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A 5-digit combination lock with digits 0-9 can be opened only if a correct combination of digits is chosen. Find the probability

stepladder [879]

A. 5 digit code with digits from 0-9 with no repetition.

Choices for 1st digit=10, and choices for successive digits are 9,8,7,6.

Probability of guessing it correctly on first try is

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B. If zero is not in the combinations, then the domain of digits is 1-9, or 9 choices. Digits can repeat means every digit in the code has 9 choices.

Number of arrangements = 9^5 = 59049

Probability of guessing at first try = 1/59049

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Answer:23.7

Step-by-step explanation:

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4 years ago

-2.777777777repeating as a fraction

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Any repeated fraction is written as the number devided by nine(s).
for example
0.1111... =1/9
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so the given number= -2 -7/9 = -25/9

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3 years ago

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