Question

Y = С + І; С = 4 + 0,6Y; І = 10​

Answer 1

Ответ:

у=4+0,6у+10 или 0,4у=14 или у=14/0,4=35

Пошаговое объяснение:

Answer 2

The equations you've provided represent a simple economic model, where:

• Y represents the total income or output in the economy.
• C represents consumption.
• I represents investment.

Let's break down the equations:

1. C = 4 + 0.6Y This equation represents the consumption function, which tells us that consumption (C) is equal to 4 plus 0.6 times the total income (Y). This means that as income increases, consumption also increases, but not as fast as income does. The parameter 0.6 represents the marginal propensity to consume (MPC), which is the fraction of additional income that people choose to spend.

2. I = 10 This equation represents investment (I), which is a fixed amount of 10. In this simple model, investment is not influenced by changes in income; it remains constant.

Now, let's find the equilibrium level of income (Y) by setting Y equal to C + I:

Y = C + I Y = (4 + 0.6Y) + 10

Now, solve for Y:

Y - 0.6Y = 4 + 10 0.4Y = 14

Divide both sides by 0.4 to isolate Y:

Y = 14 / 0.4 Y = 35

So, the equilibrium level of income (Y) in this economy is 35. This means that when total income is 35, consumption and investment together will equal 35:

C = 4 + 0.6(35) = 4 + 21 = 25 I = 10

C + I = 25 + 10 = 35

Therefore, when Y is 35, the equations are satisfied, and the economy is in equilibrium.