C+R=10
D+R=20
D+C=24
D+C+R=?
prince5533:
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Answers
Answered by
2
27 is the answer.
As:
C+D+2R=30
C+D=24
2D=6
As:
C+D+2R=30
C+D=24
2D=6
please mark it brainliest
Answered by
9
C+R = 10
R = 10-C (1)
D + R = 20
D + (10-C) = 20
D - C = 10
D = 10+C (2)
D + C = 24
10+C+C =24
2C = 14
C = 7
PUT VALUE OF C IN 1
R = 10 -7
R = 3
PUT VALUE OF C IN 2
D = 10+7
D = 17
D + C + R = 17 + 7 + 3
D + C + R = 27
R = 10-C (1)
D + R = 20
D + (10-C) = 20
D - C = 10
D = 10+C (2)
D + C = 24
10+C+C =24
2C = 14
C = 7
PUT VALUE OF C IN 1
R = 10 -7
R = 3
PUT VALUE OF C IN 2
D = 10+7
D = 17
D + C + R = 17 + 7 + 3
D + C + R = 27
Why so lengthy dear
Just add first two and subtract the third to get value of R
FULL EXPLANATION
okkk
put that value in last to get final answer using first equation
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