Equation

Grace20

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Jun 25, 2013
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Can someone please help me with the following question:

A candidate's final mark in a GCSE examination is calculated from two components as follows:

Final mark= mark in component 1 x 0.6 + mark in component 2 x 0.4

A candidate needs a mark of 80 or more to be awarded a grade A*. If the mark awarded in component 2 was 70, what would be the least mark needed in component 1 to gain a grade A* ?
 
Can someone please help me with the following question:

A candidate's final mark in a GCSE examination is calculated from two components as follows:

Final mark= mark in component 1 x 0.6 + mark in component 2 x 0.4

A candidate needs a mark of 80 or more to be awarded a grade A*. If the mark awarded in component 2 was 70, what would be the least mark needed in component 1 to gain a grade A* ?
(0.4 * 70) + (0.6 * x) = 80.

Can you take it from here?
 
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