We need to build a system of equations:
a + b + c = 127......(1)
b - c = 13..............(2)
a - b - c = 41..........(3)
adding equations (1) and (3):-
2a = 168
a = 84
Substituting for in equation (1)-
84 + b + c = 127
b + c = 43...........(4)
Adding equations (2) and (4):-
2b = 56
b = 28
Finally from equation (2)
c = 28-13 = 15
Answer is Country a had 84 points , b had 28 points and c had 15 points.
Answer:
of the cake
Step-by-step explanation:
add
and
to see the total amount of cake eaten.
a. find the common denominator: 8 x 3 = 24 and 6 x 4 = 24
b. multiply accordingly to get the correct numerator:
+ 
c. add:
+
= 
subtract found value from total to find left over cake.
a. 24 - 7 = 14
simplify.
a.
= 
You are left with
of the cake.
Answer:
C
Step-by-step explanation:
Answer:
B
Step-by-step explanation:
hope this helps