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In 2017 the number of teachers in a school was 20. The number of teachers doubles each year. If in 2019 3/5 of the teachers are female how many male teachers are there in 2019?


Firstly the number of teachers doubles every year, so how many teachers are there in 2019?2017 = 202018 = 20 x 2 = 402019 = 40 x 2 = 80If 3/5 of the teachers are female what fraction are male?1/1-3/...

LP
Answered by Lorna P. Maths tutor
2551 Views

is the statement 5.2 x 10> 34 correct?

yes. firstly , we needs to solve what 5.2 x 10 is. This will give us a number to then compare to 34. so , to solve 5.2 x 10 we must remember that the multiply sign means the number will get bigger. since ...

VE
Answered by Victoria E. Maths tutor
2794 Views

Given the curve y=x^2 -6x +8, find the turning point.

For a turning point, the differential of the curve is equal to 0. Therefore dy/dx = (12)x^(2-1) - (61)x^(1-1) + 0 = 0. This gives x = 3. Substitute this back into the original equation to get y=-...

EB
Answered by Ellis B. Maths tutor
6421 Views

Expand and simplify fully (x+3)(x-1)

When expanding brackets one should follow the FOIL order, multiplying out in this order:First- The first term in each bracket Outside- The outside terms of the brackets

CL
Answered by Callum L. Maths tutor
7395 Views

Factorise x^2+3x+4 without the use of quadratic formula

We use the form ax^2+bx+cTo factorise we need to put the equation into 2 bracketsThese 2 brackets will be in the form (x+k)(x+j) where k and j are to be foundWe need to find a combination of k and j for w...

WC
Answered by William C. Maths tutor
3119 Views

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