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3x + 4y + 7z = 12. x=2 and y=-1, what is the value of z to 2 dp?

first you sub in the values you know so3(2) + 4(-1) + 7z =12then you simply the equation6-4+7z=122+7z=12then you put all the letter values on one side and all the numbers on the other12-2= 7zthen simplify...

EP
Answered by Emily P. Maths tutor
2915 Views

How do I structure my essay?

Start with an introduction, here you should tell your reader your standpoint and then the rest of the essay is used to show why your standpoint may be correct or incorrect. For example 'Do all Christians...

EO
1538 Views

How do I write an introduction to an examination essay?

The aim of an introduction is to clearly state your answer to the question and then explain your argument. A strong candidate will answer the question in the first sentence. Then proceed by outlining how ...

GS
Answered by Georgina S. History tutor
4550 Views

how do you convert repeating decimals into a fraction?

first you let the given number equal xeg x = 0.8989898989. equation 1then look at the decimal and figure out which number is repeating. here it is 89 a two digit numberso we multiply x and the decimal by ...

RS
Answered by Roman S. Maths tutor
2842 Views

How do you analyse a poem

Read the poem twice, and a third time aloud. Highlight any language that stands out to you - whether for its tone, technique, imagery, clarity or ambiguity (etc.) Write down your ideas and questions at t...

Answered by English tutor
1427 Views

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