<span>299.2
The atomic weight of the new element is simply the weighted average of the isotopes. So
0.4030 * 296.78 + 0.5970 * 300.88
= 119.60234 + 179.62536
= 299.2277
Now the number of significant digits is the same as the number of significant digits of the LEAST PRECISE DATUM. And that would be the percentages at 4 significant digits each. So the result needs to be rounded to 4 significant digits which is 299.2</span>
75/3=$25 She gave $25 to the first person and was left with 75-25=$50. She then gave a 1/3 to a second person. 50/3=$16.70
50-16.70=$<span>33.3</span>
Answer: 0.35
Step-by-step explanation:
For making any fraction to a decimal you just divide the top number by the bottom number. Ex. 7/20=0.35
Answer:
x = 12.5
Step-by-step explanation:
Based on the interesting chords theorem, we would have the following:
2*x = 5*5
2x = 25
Divide both sides by 2
x = 25/2
x = 12.5
1 each hour 20-11=9 there is 9 hours between 11pm and 8:54am so 1 per each hour hope that it helped ;)