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jackyrodriguez92
19.03.2021 •
Mathematics
If A= 5/6 ,B= 2/3,C = 9/6 then find the value of B(A+C)+C(A+B) b) a cyclist covers a distance of 15km in 2hours calculate his speed
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Ответ:
Step-by-step explanation:
A = 5/6 , B = 2/3, C = 9/6
B (A + C) + C (A + B) I expanded the terms
AB + BC + AC +BC collect the two BC terms
AB + 2BC + AC
A = 5/6 , B = 2/3, C = 9/6
AB + 2BC + AC substiutite the values in for the variables into the eq
(5/6)(2/3) + 2(2/3)(9/6) + (5/6)(9/6)
(10/18) + 2 (18/18) + 45/36
(10/18) + 2 (1) + 45/36
20/36 + 72/36 + 45/36 2 = 72/36
(20 + 72 + 45) / 36
137/36 This answer seems odd but I think it is correct
or 3 29/36
b) divide 15 km by 2 hours to get the speed in km/hr
Ответ:
The answer is C.
Step-by-step explanation: