Question

1. the value of X+7+4(x-5)for X=2. 2. value of expression. 2a-2b-4-5+a. at. a=1. ,b=2. 3. must be subtracted from to 2a +b. to get. 2a -b.​

Answer 1

Answer:

Take V volume of water.

So, we have V\rhoVρ mass of water.

Take V volume of the liquid as well (we're instructed to do that).

So, 1.5\rho V1.5ρV mass of liquid.

Total mass = 2.5\rho V2.5ρV , and total volume = 2V2V .

So, final relative density = 1.25 (total mass / (total volume * density of water))

Answer 2

Step-by-step explanation:

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