Other Economics Answers

The market for good A is in equilibrium. Then the price of a substitute good decreases and, simultaneously, the price of an input used to make good A increases. The equilibrium price of good A will

a.

either increase, decrease, or stay the same, and the equilibrium quantity of good A will increase.

b.

either increase, decrease, or stay the same, and the equilibrium quantity of good A will decrease.

c.

increase and the equilibrium quantity of good A will either increase, decrease, or stay the same.

d.

decrease and the equilibrium quantity of good A will either increase, decrease, or stay the same.

When 𝐼 = 10, 𝑎 = 2 and 𝑛 = 5, calculate the value of 𝑑 in the formula below:

𝐼 = 𝑎 + (𝑛 − 1) 𝑑

[1] 𝑑 = 2

[2] 𝑑 = 3

[3] 𝑑 =48

[4] 𝑑 = 8

Simplify the following expression as far as possible: √64𝑝 2 × √𝑝 64 × √𝑝 2 [1] 8p 11 [2] 32p 11 [3] 8p 34 [4] 32p 34

The cost for labour and materials for painting is R60,00 per square metre. How much will it cost to paint a square parking area of sides with length 32 metres. [1] R193 019,45. [2] R1 920,00. [3] R3 840,00. [4] R61 440,00

A cylindrical jug that carries 5 ℓ of water when it is filled to the brim, has a height of 20 𝑐𝑚.

Determine the diameter of the base surface of the jug (in 𝑐𝑚)? Round off your answer to the nearest

integer.

[1] 9 𝑐𝑚

[2] 18 𝑐𝑚

[3] 4 𝑐𝑚

[4] 80 𝑐�

Determine the volume of a cube with sides 50 𝑚𝑚 long. Give the answer in 𝑐𝑚3 . [1] 125 𝑐𝑚3 [2] 125000 𝑐𝑚3 [3] 12500 𝑐𝑚3 [4] 150 𝑐𝑚3

Determine the volume of a cube with sides 50 𝑚𝑚 long. Give the answer in 𝑐𝑚3 . [1] 125 𝑐𝑚3 [2] 125000 𝑐𝑚3 [3] 12500 𝑐𝑚3 [4] 150 𝑐𝑚3

Determine the volume of a prism with l = 0.15 𝑚, b = 40 𝑚𝑚 and h = 20 𝑐𝑚. Your answer must be converted to litres, rounded to one decimal digit. [1] 120,0 ℓ [2] 1,2 ℓ [3] 1 200,0 ℓ [4] 12,0 ℓ

The area of a rectangle is 96 𝑐𝑚2 . If the breadth of the rectangle is 8 𝑐𝑚, find its perimeter. [1] 20 𝑐𝑚 [2] 48 𝑐𝑚 [3] 32 𝑐𝑚 [4] 40 𝑐�

Select the correct answer for the perimeter of a rectangle with a length of 16 𝑚 and a width of 4 𝑚. [1] 20 𝑚 [2] 40 𝑚 [3] 64 𝑚 [4] 80 𝑚