The answer is 
First you must use distributive property to simplify.
Then, you must subtract 18 on both sides
Next, add 2 on both sides
Then, subtract 8x on both sides
Finally, Divide both sides by -2. Don't forget to switch the equality sign because the variable was changed to a positive using division.
Answer:265-d
Step-by-step explanation:
If she had 265 and used dozen it's 265 less d
We conclude that Michael worked for a total of 11.46 hours in the weekend.
<h3>How much time did he work on the weekend?</h3>
We know that during the weekend, the times that he used for each task are:
- (6 + 3/7) hours to do his homework.
- 4.37 hours to clean his room.
- 2/3 hours to walk the dog
The total time is given by the sum between the above numbers, where the difficulty is the fact that the 3 numbers are in different notations (decimal, fraction, and mixed).
The sum is:
S = (6 + 3/7) h + 4.37 h + 2/3 h
The easier way to do this, is to write the 3 numbers in decimal form:
2/3 = 0.66
6 + 3/7 = 6 + 0.43 = 6.43
Then the total time is:
S = 6.43 h + 4.37h + 0.66h = 11.46 h
We conclude that Michael worked for a total of 11.46 hours in the weekend.
If you want to learn more about sums:
brainly.com/question/17695139
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9514 1404 393
Answer:
Step-by-step explanation:
The place value of a digit to the right of the decimal point is 10 to the negative power of the digit count. The 1st digit right of the decimal point has a place value of 10^-1.
Here, the most significant digit of 0.000000016 is in the 8th place to the right of the decimal point, so its place value is 10^-8.
0.000000016 = 1.6×10^-8
Another way to write the same number is 1.6E-8. (The "E" is a stand-in for ×10^.)
_____
Your (graphing or scientific) calculator or a spreadsheet can display this in scientific notation for you.
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That many nanoseconds, as this problem states, would be 1.6×10^-17 seconds. "Nano" is an SI prefix meaning 10^-9.
1.68 / 3 = 0.56 per can
2.45 / 5 = 0.49 per can
the 5 cans for 2.45 is better because it is cheaper per can.
