Answer:
Son's age = 24 years
Man's age = 48 years
Step-by-step explanation:
Let's take the age of son as x
Man's age = 2x
Twelve years ago,
Son's age= x-12
Man's age= 2x-12
Man is three times as old as his son so,
![\frac{2x - 12}{x - 12 } = \frac{3}{1}](https://tex.z-dn.net/?f=%20%5Cfrac%7B2x%20-%2012%7D%7Bx%20-%2012%20%7D%20%3D%20%20%5Cfrac%7B3%7D%7B1%7D%20)
Solving for x,
2x-12(1) = x-12(3)
2x-12 = 3x-36
2x-3x = -36+12
-x = - 24
x = 24
So if we substitute the values we get,
Son's age = 24 years
Man's age = 48 years
Hope you understand :)
Answer:
9 groups
Step-by-step explanation:
18 students split to three groups having 6 students each
So 54 students = 6 × 9
So 9 groups
The answer choice which explains whether the function is a direct variation or not is; This function represents a direct variation because it passes through the origin and has a constant rate of change of $5 per hour.
<h3>Which explains whether or not the function represents a direct variation?</h3>
It follows from the task content that the function passes through the origin and hence, if the function was represents as a linear function, it's y-intercept would be zero.
Furthermore, the slope, otherwise termed it's rate of chage is constant and is evaluated as; $5 per hour. Hence, the aforementioned form the basis for the classification of the function as a direct variation.
Read more on variation;
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Answer:
1 bag
Step-by-step explanation:
because the other ones are more expensive
B 3 + x is an expression because it has no =