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.
B
5,000
because the library has more than or = to 5000 books.
Is there supposed to be a picture attached? You have not told us how many colors of softballs there are, nor how many of each color.
Answer:
x = 2, P = 22 cm, A = 21 cm²
Step-by-step explanation:
The 2 legs of the triangle are congruent , then
6x - 4 = 8 ( add 4 to both sides )
6x = 12 ( divide both sides by 6 )
x = 2
perimeter = 8 + 8 + 6 = 22 cm
Area = 
bh ( b is the base and h the perpendicular height )
Here b = 6 and h = 7 , then
A = × 6 × 7 = 3 × 7 = 21 cm²
Ur line shows the inequality x < = 10....with the greatest temperature of 10 degrees
