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Gemiola [76]
3 years ago
5

3 years ago a father was 3 times as old as his son in 5 years time he will be twice as old as his son in, what will be the sum o

f their years in four years time ​
Mathematics
1 answer:
Troyanec [42]3 years ago
4 0
46 because if the age of the son was 8 then the father was 24 and if we add 8 (because that’s how many years passed) we get 16 and 32 which fit the criteria so if we take off 1 year on each (because only 7 years pass instead of 8) we can add them together and get 46
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The amount that two groups of students spent on snacks in one day is shown in the dot plots below. Which statements about the me
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Answer:

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  • The median for Group A is less than the median for Group B.
  • The mode for Group A is less than the mode for Group B.

Step-by-step explanation:

First, we can find the measures of center for each group.

<u>Group A</u>

Mode: 1

Median: (1 + 2) / 2 = 3 / 2 = 1.5

Mean: (1 * 5 + 2 * 4 + 3) / 10 = (5 + 8 + 3) / 10 = 16 / 10 = 1.6

<u>Group B</u>

Mode: 3

Median: 92 + 3) / 2 = 5 / 2 = 2.5

Mean: (1 * 3 + 2 * 2 + 3 * 4 + 5) / 10 = (3 + 4 + 12 + 5) / 10 = 24 / 10 = 2.4

From here, we can see that...

  • The mean for Group A is less than the mean for Group B.
  • The median for Group A is less than the median for Group B.
  • The mode for Group A is less than the mode for Group B.

Hope this helps!

8 0
3 years ago
Put the following equation of a line into slope-intercept form, simplifying all
dmitriy555 [2]

Answer:

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Step-by-step explanation:

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y = (-8x+48)/12

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lesya [120]

Answer:

The unknown side is 15 in.

Step-by-step explanation:

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a^2=289-64

a^2=225

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What conclusion can be made when r, the correlation coefficient between two variables, is 0?
IgorLugansk [536]
The correlation coefficient between two variables, r, is always going to be between -1 and 1.

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