calculate the answer to each problem, then round your figures. please put the calculator answer and your…

calculate the answer to each problem, then round your figures. please put the calculator answer and your round different color font. 28. 13.90 g + 0.993 g 135.7 g 29. d = \\frac{126.78 g}{12.2 ml} 31. 152.34 cm x 38.23 cm = 32. 2. 33. d = \\frac{37.25 g}{6.78 ml} 34. 15.

calculate the answer to each problem, then round your figures. please put the calculator answer and your round different color font. 28. 13.90 g + 0.993 g 135.7 g 29. d = \\frac{126.78 g}{12.2 ml} 31. 152.34 cm x 38.23 cm = 32. 2. 33. d = \\frac{37.25 g}{6.78 ml} 34. 15.

Answer

Explanation:

Step1: Solve problem 28

Add the masses: $13.90\ g+0.993\ g + 135.7\ g=150.593\ g$.

Step2: Solve problem 29

Calculate density $D=\frac{126.78\ g}{12.2\ mL}\approx10.3918\ g/mL$.

Step3: Solve problem 31

Multiply the lengths: $152.34\ cm\times38.23\ cm = 5824.9582\ cm^{2}$.

Step4: Solve problem 33

Calculate density $D=\frac{37.25\ g}{6.78\ mL}\approx5.4941\ g/mL$.

Answer:

  1. Calculator answer: $150.593\ g$, Rounded answer: $150.6\ g$
  2. Calculator answer: $10.3918\ g/mL$, Rounded answer: $10.4\ g/mL$
  3. Calculator answer: $5824.9582\ cm^{2}$, Rounded answer: $5825.0\ cm^{2}$
  4. Calculator answer: $5.4941\ g/mL$, Rounded answer: $5.49\ g/mL$