Write a percent equation that can be used to solve the following problem: 820 is 20% of what number?
A. n = 0.2 x 820
B. 820 = 0.2 × n
C. 0.2 = n × 820
D. none of these
A. n = 164
B. n = 4100
C. n = 0.00024
Which is the only logical answer?
is it b?
D. none of these
Because the question is asking for "820 is 20% of what number," we need to set up an equation where the unknown number is being multiplied by 20% (0.2). The equation should be:
n × 0.2 = 820
To solve the problem "820 is 20% of what number?", we can set up a percent equation. A percent equation compares a part to a whole using a proportion.
Let's designate the unknown number as 'n'. We are given that 820 is 20% of this unknown number. The equation should express this relationship.
The equation is: 820 = 0.2 × n
Therefore, the correct answer is B. 820 = 0.2 × n.
Yes, B.
820 is 20% of 4,100