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Using the given information, the density of metal B is 8.58 g/cm³
Calculating density
From the question, we are to determine the density of metal B
From the given information,
55 g of metal A is combined with metal B to create an alloy with mass 90 g
∴ Mass of metal B in the alloy = 90 g - 55 g = 35 g
Now, we will determine the volume of metal A in the alloy
Using the formula,
Density = Mass / Volume
∴ Volume = Mass / Density
Volume of metal A in the alloy = 55/12.7
Volume of metal A in the alloy = 4.33 cm³
Then, we will determine the volume of the alloy
Volume of the alloy = 90/10.7
Volume of the alloy = 8.41 cm³
∴ Volume of metal B in the alloy = 8.41 cm³- 4.33 cm³
Volume of metal B in the alloy = 4.08 cm³
Now, for the density of metal B
Density = mass / volume
Density of metal B = 35 / 4.08
Density of metal B = 8.58 g/cm³
Hence, the density of metal B is 8.58 g/cm³.
Learn more on Calculating density here: https://brainly.com/question/13986137
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