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3 years ago

John was 40 years old in 1995 while his father was 65.In what year was John exactly half his father's age?

2 answers:

4 0

First, you would divide 65 by 2 and you would get 32.5. Then, You would subtract 32 from 40 to get 8. Finally you would subtract 8 by 1995 to get your answer for what year was john exactly half his fathers age and that year would be 1987. Your welcome :)

vfiekz [6]3 years ago

4 0

Answer:

1980.

Step-by-step explanation:

John was born in 1995 - 40 = 1955.

His father was born in 1995 - 65 = 1930.

Let x be Johns age and his father 2x

1955 + x = 1930 + 2x

1955 - 1930 = 2x - x

x = 25

So the year is 1955 + 25 = 1980..

In that year John was 25 and his father was 50.

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The independent variable in the relationship is the Number of Months and should be placed on the x-axis

The dependent variable in the relationship is the Number of Fish and should be placed on the y-axis

Step-by-step explanation:

Let us explain the independent and dependent variables of a relation

The independent variable is the input of the relation

The dependent variable is the output of the relation
The values of dependent variables depend on the values of independent variables
When the relation represented graphically the independent variable placed on the x-axis and the dependent variable placed on the y-axis

The table:

→ Number of Months: 0 : 1 : 2 : 3 : 4

→ Number of Fish : 1,024 : 1,280 : 1600 : 2,000 : 2,500

Let us check is their any constant ratio between the consecutive values of the number of fish

∵ 1,280 ÷ 1,024 = 1.25

∵ 1,600 ÷ 1.280 = 1.25

∵ 2,000 ÷ 1,600 = 1.25

∵ 2,500 ÷ 2,000 = 1.25

∴ The table represent an exponential function, where the input

is the number of months and the output is the number of fish

∵ The input is independent variable

∴ The independent variable is the number of months

∵ The output is the dependent variable

∴ The dependent variable is the number of fish

∵ The independent variable is placed on the x-axis

∴ The number of months should be place on the x-axis

∵ The dependent variable is placed on the y-axis

∴ The number of fish should be place on the y-axis

The independent variable in the relationship is the Number of Months and should be placed on the x-axis

The dependent variable in the relationship is the Number of Fish and should be placed on the y-axis

Learn more:

You can learn more about the relation in brainly.com/question/10708697

#LearnwithBrainly

6 0

3 years ago

John was 40 years old in 1995 while his father was 65.In what year was John exactly half his father's age?​

John was 40 years old in 1995 while his father was 65.In what year was John exactly half his father's age?