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ipn [44]
3 years ago
9

In a recent air quality​ study, there were 64 unhealthy air quality days in City A. This is 4 more than twice the number of unhe

althy air quality days in City B. How many unhealthy air quality days were there in City​ B?
Mathematics
1 answer:
leonid [27]3 years ago
3 0

Answer:

The answer to your question is: 30 days

Step-by-step explanation:

City A has 64 unhealthy air quality days this is 4 more than twice the number of unhealthy air quality days in City B.

# unhealthy days in city A = 64

# unhealthy days in city B = B

Equation

                          64 = 2B + 4

                          64 -4 = 2B

                          60 = 2B

                          B = 30 days

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Complete Question

Suppose that the money demand function takes the form

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Answer:

a. See explanation below

b. Velocity = 5i

Step-by-step explanation:

a. Suppose that the nominal interest rate remains constant, the demand for real balances will grow at the same rate at which the output grows.

b.

Given that (M/P)^d = L(i,Y) = Y/(5i)

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M * 5i = P * Y --- Make 5i the subject of formula

5i = PY/M ---- (2)

Compare 1 and 2

5i = V = PY/M

So, 5i = V

V = 5i

Hence, Velocity = 5i

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