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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
GS
Answered by Gabrielle S. • Maths tutor
4136 Views

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

for part AYou would but the t² into brackets , then substitute t=5 to get h=3(5²) using BIDMAS do the 5² = 25 so that h=3(25) so you end up with h=75
for part B fir...

Answered by Danielle N. • Maths tutor

4656 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 singul...

Answered by Tanika D. • Maths tutor

2721 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.

8/113/10=24/110=12/553/118/10=24/110=12/55
Probability = 24/55

Answered by Kieran H. • Maths tutor

12962 Views

What is 700 million in standard form?

The number 700 million can be written out in its longer form of 700,000,000.We know that a number in standard form is written in the form of a x 10ⁿ, where a is a number greater than or equal t...

Answered by Carter B. • Maths tutor

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