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Sam needs to make a drink from orange cordial and lemonade in the ratio 1:9. How much orange cordial does he need to make 1500ml?

1 portion of orange cordial is mixed with 9 portions of lemonade There are 10 portions in total one-tenth of the total volume would be the volume of orange cordial needed (1/10) * 1500 = 150 Therefore 150ml ...
OO
Answered by Oluwatobi O. • Maths tutor
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Solve this equation: 5x-4=3x+7

Step 1 Collect x terms on one side (here we subtract 3x from both sides to give 2x on the left, and 0x, on the right) Step 2 Collect the non x terms on theother side (here we add 4 to both sides to give 0 on...
CM
Answered by Callum M. • Maths tutor
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What is the probability that the next baby born in England will be a boy?

A baby can either be a boy or a girl, so there are only two possible outcomes. This means that the probability of the next baby being born a boy is 1 out of the 2 outcomes. This also can be written as 0.5 as...
PS
Answered by Poppy S. • Maths tutor
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Please factorise and solve x^2 -1 = 0

using the method, what two numbers multiply to create -1 and add to make 0 -1 must be 1 x -1 therefore answer is (x+1)(x-1) - is it clear how the single x value is cancelled out? x^2 +x -1 -x = x^2 -1
LA
Answered by Laxmi A. • Maths tutor
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Solve the simaltaneous equations: 3x + 4y = 10, 2x + 3y = 7

Solving by elimination 1. multiply the equations by a number so that the number in front of either x or y is the same for both equations: 3x + 4y = 10 (X2) --> 6x + 8y = 20 2x + 3y = 7 (X3) --> 6x + 9y...
ST
Answered by Sarah T. • Maths tutor
15535 Views