The variable in this equation is b, therefore we have to calculate the value of b.
-38=2b+25-(-7b)
-38=2b+25+7b
2b+7b=-38-25
9b=-63
b=-63/9
b=-7
Answer: the value of the variable is b=-7
We can check it out this answer:
-38=2b+25-(-7b)
-38=2(-7)+25-(-7(-7))
-38=-14+25-49
-38=-38
X=1 Y=0
Y-12X+15+3X^2-16X+13-Y=3X^2
-12X+15-16X+13=0
-28X+28=0
X=1
Y=3-16+13=0
TOTAL NO.OF ANIMALS IN FARMHOUSE=42
RATIO OF COW : BUFFALO=5:9
LET THE NO.OF COWS BE 5X AND BUFFALOES BE 9X
5X + 9X =42
14X=42
X = 42/14
X= 3
TOTAL NO.OF COWS = 5 x 3 =15
TOTAL NO.OF BUFFALOES = 9 x 3 = 27
Answer:
Minti - 12 days
Minti & Rinki - 8 days
Use Formula 3
time= (12 * 8) / (12 -8)
time = 96 / 4
time for Rinki alone = 24 Days
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Rinki alone for 4 days will leave 20 days of work to be done.
Step-by-step explanation: