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What is the price elasticity of demand ?

Firstly, the demand of a consumer for a certain good or service is the willingness to pay the price for that good/ service in order to be considered in the market demand. The price elasticity of demand re...

Answered by Athina H. • Economics tutor

2399 Views

Solve the following simultaneous equations: x+y=9; x-2y+1=1.

Step 1: x+y=7 can be rearranged as: x= 9 - y.Step 2: We substitute the expression of x in the second equation: 9 - y - 2y + 1 = 1Step 3: We calculate the value of y. 9 + 1 - 1- 3y=0. It is equivalent with...

Answered by Daniel T. • Maths tutor

3634 Views

Find the coordinates of the stationary points for the curve y = x^4 - 2*x^2 + 5.

First solve to find dy/dx.dy/dx = 4x^3 - 4xThe stationary points occur when dy/dx = 0. Solve the equation to find the values of x for when dy/dx = 0.4x(x^2 - 1) = 0 x = 0, x = 1, x = -1Finally su...

Answered by Matthew W. • Maths tutor

5085 Views

120 men and 80 women were asked if they drive to work. Altogether 1/4 of people said yes. And a 1/3 the of men said yes. What fraction of women said yes?

Step 1- Workout how many people overall said yes.
We Know overall there are 200 people and of these 200 people 1/4 said yes. Therefore, we need to workout 1/4 of 200. Simply divide 200 by 4. 200/4=5...

Answered by Harry R. • Maths tutor

9039 Views

Vous êtes en vacances et vous écrivez à votre ami(e) français(e). Mentionnez: où vous êtes, l’hôtel et vos activités de vacances. Ecrivez environ 40 mots en français.

Bonjour, Je suis en vacances à Barcelone avec ma famille. Nous restons dans un hôtel qui a une grande piscine. Aujourd'hui, nous allons à la plage car il fait très chaud. Demain nous allons voir 'La...

Answered by Marion D. • French tutor

3005 Views