How to use "mixture" in a sentence

She looked at him with a mixture of disappointment and sadness in her eyes.

The smells and sounds make a horrible mixture.

Your heart is beating so fast that you do not feel anything but the strange mixture of fear and anger.

Detective Smith is older, his hair a mixture of black and grey, his stomach large, and his expression usually unhappy

The man was running away with the others and selling his papers for many times their normal price as he ran - a strange mixture of profit and panic.