How I can distinguish between actinomycetes and bacteria in plates?​

Actinomycetes will form powdery colonies that stick firmly to the plate and they grow slowly while bacterial colonies are slimy , distinct and will grow faster.

there are 35 white marbles

step-by-step explanation:

y- yellow marbles

4y + 5 = 45

subtract 5 from both sides

4y = 40

divide for from both sides

y = 10

plug in 10 to get 40 yellow marbles then subtract by 5 to get 35 marbles

thus there are only 10 yellow marbles