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How do I solve this linear equation? Angles A and B are in a quadrilateral are in ratio 2:3, angle C is 30 degrees more than angle B and angle D is 90 degrees.

Firstly I would draw a diagram of a quadrilateral and label my angles, starting clockwise A,B C and D. Remember that all angles in a quadrilateral add up to 360 degrees. You must use linear equations to s...

Answered by Tutor49006 D. • Maths tutor

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f(x) = x^2 + 4x − 6 f(x) can be written in the form (x + m)^2 + n. Find the value of m and the value of n.

Because we know (x+m)^2 expanded will provide x^2+2mx+m^2 and we have the extra addition of a value named n we can strictly focus on ensuring the expansion yields x^2+4x and deal with the -6 value by usin...

Answered by Majed G. • Maths tutor

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A teacher is chosen at random. The probability that the teacher is female is 3/5. There are 36 male teachers. How many teachers in total work at the school?

Info given = probability that the teacher is female = 3/5 36 male Teachers

Workings: If 3/5 are female then 2/5 are male. 2/5 = 36 males 36 divided by 2 = 18 so get the one portion. to find out how...

Answered by Sophie-Mae S. • Maths tutor

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1/4 of a number is 20. What is 5 times the number?

400

Answered by Gabrielle F. • Maths tutor

8258 Views

How do I solve the inequality 7x+2 > 2x-3?

Treat the > as an = and solve the equation as you normally would. So for the inequality 7x+2 > 2x-3, pretend it was 7x+2 = 2x-3 and solve that. Just make sure you always replace where you'd write an...

Answered by Jonathan S. • Maths tutor

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