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Mufhatutshedzwa Mufhatutshedzwa
  • 19-04-2016
  • Mathematics
Answered

  1. solve the following pair of simultaneous equations.

6f + e = 23

2e - f = 7

  1. Solve the question 1 above graphically, i.e using straight line graphs. Show all relevant points

Verified Answer :

Rethabilemochaki Rethabilemochaki
  • 19-04-2016

from equation 1 e=23-6f
sub 1 into 2. 2(23-6f)-f=7
46-12f-f=7
46-7-12f-f=0
39-11f=0
39=11f
then u divide both side by 11
therefore f=3.55
subtitude f in 1
6(3.55)+e=23
21.3+e=23
e=23-21.3
e=1.7

Answer Link
Anonymous Anonymous
  • 22-04-2016

1.7 is the correct answer.

Answer Link

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