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joshuag9047
02.07.2019 •
Mathematics
2more than three times a number is 20. what is the number
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Ответ:
2 + 3x = 20
Subtract 2 from both sides.
3x = 18
Divide both sides by 3.
x = 6
Ответ:
6
Step-by-step explanation:
From the problem, we can write the following equation: 3x + 2 = 20.
Then, we can subtract 2 on each side to get 3x=18, and then divide by 3 on each side to get x=6!
hope this halps!
Ответ:
Our number is 0.000000016, so we need to move the decimal point 8 times to the right to have only one non-zero digit to the left of the decimal point (1.6). Since we moved the decimal point eight times to the right, we are going to multiply 1.6 by y a negative power of 10 equal to the number of times we moved the decimal point to the right i.e.
So 0.000000016 expressed in scientific notation is 1.6x
We can conclude that the correct answers are 1.6E-8 and 1.6 × 10-8