Will mercury with a density of 13.6 g/mL float or sink?

Step-by-step explanation:

If something has a large mass compared to its volume, it has a high density. The density of an object compared to the density of liquid it is placed in determining whether an object will sink or float. An object that is less dense than mercury will float. So Nickel, Zinc, Lead float in liquid mercury.

Mercury will sink

(sorry if Im wrong)

38.5

step-by-step explanation:

lets say, first number = r

second number = 3r+7

total = 49

(r)+(3r+7)= 49

4r+7 = 49

4r = 42

r = 42/4

r= 10.5

3r+7 = 3(10.5)+7 = 38.5

hope this

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step-by-step explanation:

just for that im not answering