Answer:
15/8 alphas = 1 gamma
Step-by-step explanation:
4 gammas = 5 beta
beta = 4/5 • gamma
2 betas = 3 alphas
beta = 3/2 • alpha
beta = beta
4/5 • gamma = 3/2 • alpha
multiply each side by 5/4
5/4 • 4/5 • gamma = 5/4 • 3/2 • alpha
gamma = 15/8 • alpha