Answer:
Noah is correct
Step-by-step explanation:
When we multiply a whole number, (without decimal notation) by 10 we can arrive at the correct answer by adding 0 to the right end of the number. However, it is not the general rule as the above method only applies to whole numbers because we have.
10 × 5 = 50
However,
10 × 5.0 ≠ 5.00
And
10 × 0.05 ≠ 0.050
The general rule is when multiplying a number by 10 it simply means shifting the decimal place one position to the left. The result of which is for whole numbers, when we shift the decimal place one place to the left, we add a zero to the right end of the number as follows;
10 × 30 = 300
Also when we multiply a decimal (fraction) by 10 we shift the place of decimal (decimal place) one decimal place to the right as follows;
10 × 0.003 = 0.03
Therefore, simply adding 0 to the right end of a number (including numbers with decimal fraction) when the number is multiplied by 10 to get the correct result is not always true.
5(3x-6) is equivalent to 15x - 30 if they are equivalent if the two values are the same.
<h3>What is expression?</h3>
An expression is a set of terms combined using the operations +, – , x or , /.
Given expression:
5(3x-6) is equivalent to 15x - 30.
If we put x=2 in both expression, we get finite value.
To check both the expression are equal or not we have to solve by putting the value.
So,
They are equivalent if the two values are the same otherwise not.
Learn more about expression here:
brainly.com/question/13947055
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If we take 401 to be the 100%, what is 21 off of it in percentage?
Answer:
213
Step-by-step explanation:
213 is a composite number because the digits add up to 6, and 6 is divisible by 3 so 213 is also divisible by 3
