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2 years ago

WILL GIVE BRAINLIEST, PLS HELP

Mathematics

2 answers:

marusya05 [52]2 years ago

7 0

My answers were

d=2.6

c=1.45

kvv77 [185]2 years ago

7 0

4c+2d= 11

3.5d=41-22c

Bring 22c to the left hand side . The sign changes from negative to positive.

4c+2d=11

22c+3.5d=41

Multiply the first equation by 22. Multiply the second equation by 4 . I am eliminating c first

88c + 44d= 242

88c +14d=164

Then minus for the two questions.

30d= 78f

d= 78 /30

Then divide the two numbers by 6

d= 13/5

d=2.6

Next find c

The next step is substitution into any of the two equations.

4c +2d=11

4c+2( 2.6) =11

4c +5.2=11

4c = 5.8

c =1.45

Final answer: (1.45 , 2.6)

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