Step-by-step explanation:
x + y = 72
x - y = 40
x = y + 40
so, the first equation is then
y + 40 + y = 72
2y + 40 = 72
2y = 32
y = 16
x = y + 40 = 16 + 40 = 56
120 because of course 1 can go into anything, 2 would be 60, 3 would be 40, 4 would be 30 and 5 would be 24
Answer:
10/9−7/6= -1/18
Step-by-step explanation:
13 in 14 in 16 21 the cyclist
4a² − 20a + 25. is the answer.