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Solve this set of linear equation to find x and y: 1. 8x + 2y =48 2. 7x +3y =47

Write out the two equations and label them 1 and 28x + 2y =487x+ 3y= 47The first aim is to get one variable (ie x or y) on both lines to equal each other. The easiest way to do this (keeping the numbers mana...
RT
Answered by Rachel T. • Maths tutor
3543 Views

Solve the simultaneous equations: 1) 3x+5y=14 and 2) -3y+10=x

Multiple the second equation through by 3 so that the x is multiplied by the same number in both equations. -> -9y + 30 = 3x 2) Rearrange the equation so that the x and y are both on the same side. -> ...
GS
Answered by Gabrielle S. • Maths tutor
4688 Views

equation(1) h = 3t^2 a) find h when t=5 b)find t when h=108

for part AYou would but the t 2 into brackets , then substitute t=5 to get h=3(5 2 ) using BIDMAS do the 5 2 = 25 so that h=3(25) so you end up with h=75 for part B first you would rearrange the equation to ...
DN
Answered by Danielle N. • Maths tutor
5315 Views

How can I solve simultaneous equations?

There are many options, but substitution is the one we will go through for this example first. Lets say you have 3x+4y = 10 and x+2y = 6In this case substitution would be easiest because you have a singular ...
TD
Answered by Tanika D. • Maths tutor
3290 Views

There are 11 counters in a bag. 8 of them red, 3 of them green. Neville takes 2 counters from the bag. Work out the probability that Neville takes one counter of each colour.

8/11 3/10=24/110=12/553/11 8/10=24/110=12/55 Probability = 24/55
KH
Answered by Kieran H. • Maths tutor
13891 Views