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Solve the simultaneous equations, 8x + 4y = 4 and 6x - 18y = 16

8x + 4y = 4,4y = 18 - 8x,2y = 2 - 4x,18y = 18 - 36x,6x - 18y = 16,18y = 6x - 16,6x - 16 = 18 - 36x,42x = 34,x = 34/42 = 17/21,18y = 90 - 36(17/21),18y = 426/7,y = 71/21
DG
Answered by Dione G. • Maths tutor
3858 Views

Explain why income tax in the UK is an example of progressive taxation?

Progressive taxation refers to a tax becoming progressively more substantial as an individuals income rises. This means as a person earns more income they are taxed more on the increase in income that they h...
JR
Answered by James R. • Economics tutor
4181 Views

An area of a garden needs to be tiled. It consists of a square area of 10m by 10m, with an outdoor pool in the middle of radius 3m. The tiles to be used are 50cm by 50cm, and cost 50p per tile. Find out how much it will cost to tile the area.

Calculate total area of space: A = 10 10 = 100m 2 Calculate area of pool: A = Pi r 2 = 3.142 3 2 = 28.27m 2 Difference in area = 100m 2 - 28.27m 2 = 71.73m 2 Calculate area of one tile: A = 0.5 0.5 = 0.25m 2...
MC
Answered by Matthew C. • Maths tutor
3526 Views

Explain why demand for food is relatively price inelastic?

Food is relatively price inelastic as it is considered a necessity which means that everyone needs it. If price were to rise there wouldn't be any change in consumption as people require it to live so theref...
JR
Answered by James R. • Economics tutor
2044 Views

solve the equation x^2 -5x +1 = 25

We can see from the term x^2 that this equation is quadratic. To solve it, we need to get it into the form ax^2 +bx +c = 0. Subtract 25 from both sides to reach this form:So we have the equation x^2 -5x - 24...
FS
Answered by Frederick S. • Maths tutor
3428 Views