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Maths
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How to convert worded problems to solvable inequalities.

Note that in September I am due to start as a trainee maths teacher . For my interview, I taught a lesson on inequalities to a class of GCSE pupils. In particular, we focused on converting worded problems...

FW
Answered by Francesca W. Maths tutor
2342 Views

Why do you times the reciprocal of the second fraction by the first when dividing fractions.

Let's use an analogy here where divide means share/split. If you share 1 pizza between a couple of 2 people, they will each end up with a half. Now lets try picture the reverse slowly.You have a couple of...

SG
Answered by Saleh G. Maths tutor
2468 Views

Evaluate 25^(3/2) giving your answer as an integer or simplified fraction (2 marks).

Evaluate just means "write this number in a different form/ find the answer". ( Step 1) break down the indices (power) to an integer and fraction (2 parts) eg: 253/2= 253 * 1/2

SG
Answered by Saleh G. Maths tutor
17848 Views

Write the equation x^2 + 6x - 40 = 0 in the form (x + a)^2 - b = 0 and then solve for x

(x2 + 6x + 9) - 49 = 0
(x + 3)2 - 49 = 0

then to solve

(x + 3)2 = 49
x + 3 = +-7
x = -10 or x = 4

DS
Answered by Darragh S. Maths tutor
3777 Views

Solve the equation 2x^2 + 3x = 9

2x2 + 3x = 92x2 + 3x - 9 = 0(2x - 3)(x+3)2x-3 = 02x = 3x = 3/2x+3=0x=-3x = 3/2 or -3

SN
Answered by Sean N. Maths tutor
3297 Views

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