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REY [17]
4 years ago
14

Is it true that:

Mathematics
1 answer:
NISA [10]4 years ago
5 0

Hello from MrBill:


Answers:

a)  True.

      The set of natural numbers is the set of positive integers (1,2,3,4...) and

      sometimes  zero (0). 27 is a positive integer and thus a natural number.

b)  True.     2.7 is not an integer  (it is a decimal value and a rational number)

c) True.      Zero (0) is an integer, but not a positive or negative number.

d) False.    -8 is an integer, a negative integer


MrB.

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4 1/2 divided by 3/4
Anton [14]

Answer:

6

Step-by-step explanation:

First, change 4 1/2 into a fraction.

4\frac{1}{2} \div \dfrac{3}{4} =

= \dfrac{4 \times 2 + 1}{2} \div \dfrac{3}{4}

= \dfrac{9}{2} \div \dfrac{3}{4}

= \dfrac{9}{2} \times \dfrac{4}{3}

= \dfrac{9 \times 4}{2 \times 3}

= \dfrac{3 \times 3 \times 2 \times 2}{2 \times 3}

= 3 \times 2

= 6

8 0
4 years ago
You are looking at two graphs. One shows the amount of money y that Max makes in x hours. The other graph shows the same thing f
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It tells you that Elle’s graph has a lower slope or rate of change compared to Max’s graph and that Elle makes more money in a certain amount of hours compared to Max
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3 years ago
Calculate the mean. 4, 5, 7, 7, 9, 12, 15, 20
Semmy [17]

Answer:

Mean: 9.875

Median: 8

Mode: 7

Minimum: 4

Maximum: 20

Range: 16

Size: 8

Sum: 79

Step-by-step explanation:

How to find the mean?

1. Count the number N of data points in your data set.

2. Sum up all of the data points in your data set (add them all together).

3. Average = Mean = Sum/N.

How to find the median ?

The median is the numeric value separating the upper half of a sample data set from the lower half. The median of a data set can be found by arranging all the values from lowest to highest value and picking the one in the middle. If there is an odd number of data values then the median will be the value in the middle. If there is an even number of data values the median is the mean of the two data values in the middle.

For the data set 1, 1, 2, 5, 6, 6, 9 the median is 5.

For the data set 1, 1, 2, 6, 6, 9 the median is 4. It is the mean of 2 and 6 or, (2+6)/2 = 4.

How to find the mode

Mode is the value or values in the data set that occur most frequently.  

For the data set 1, 1, 2, 5, 6, 6, 9 the mode is 1 and also 6.

Hope this helps you! :D

5 0
3 years ago
If Jenny has 43 apples, and gives 12 to John. How many apples does Jenny have left ?
jonny [76]

Answer:

Well, if Jenny starts out with 43 apples but then gives 12 to John that would leave Jenny with 31 apples.

Step-by-step explanation:

43 - 12 = 31

(40 - 10) + (3 - 2)

40 - 10 = 30

3 - 2 = 1

30 + 1 = 31

Here is your answer, have a nice day!

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