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Serggg [28]
4 years ago
8

HELP ASAP PLEASE!!!

Mathematics
1 answer:
pantera1 [17]4 years ago
8 0

im pretty sure it’s D

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The age of a father is 3 times the age of his son. 5 years ago, the father was 4
LUCKY_DIMON [66]

Answer:

Step-by-step explanation:

x = father's age

y = son's age

Nowadays:

3x = y

5 years ago:

4(x - 5) = y - 5

4x - 20 = y - 5

4x = y + 15

I hope I've helped you.

3 0
4 years ago
In a simple economy (assume there are no taxes, thus, Y is disposable income), the consumption function is:
Citrus2011 [14]

Using linear function concepts, it is found that consumption would increase by $800.

<h3>What is a linear function?</h3>

A linear function is modeled by:

y = mx + b

In which:

  • m is the slope, which is the rate of change, that is, by how much y changes when x changes by 1.
  • b is the y-intercept, which is the value of y when x = 0.

In this problem, the function is given by:

C = 200 + 0.8Y.

Which means that the slope is of m = 0.8 per unit of Y.

For 1000 units:

0.8 x 1000 = 800.

Consumption would increase by $800.

More can be learned about linear function concepts at brainly.com/question/24808124

5 0
2 years ago
The variables y and x have a proportional relationship, and y = 28 when x = 21.
Kipish [7]

Answer:

c

Step-by-step explanation:

4 0
3 years ago
Can someone teach me how to divide?? :((
Anni [7]
It's easy just do the long way version do you know what way?
7 0
3 years ago
The function f(x) = 2x -3 is changed to f(x)+k. The new function f(x) can be represented by the graph below. What is the value o
OleMash [197]
As you can see in this picture we have a point on y- axis which is our y-intercept and f(x) 
so first we should find what WAS the y-intercept before adding k 
so we can say:
f(x) = 2(0) - 3 = -3 
so it WAS -3 .... but in this picture is -7 
so you have: 
-3 + k = -7 
k = -7 + 3 = -4 
so k is equal to -4 :)))
i hope this is helpful
have a nice day 
8 0
3 years ago
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