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10 votes
10 votes
Write as an equation: The product of a number and 12 is 78.

A. 12n=78
12
n
=
78
B. n+12=78
n
+
12
=
78
C. 12−n=78
12

n
=
78
D. 12=78n

User Wonka
by
2.9k points

2 Answers

25 votes
25 votes
Answer: A) 12n = 78

Detailed Solution:

Let ‘n’ be the Unknown Number.

Product of ‘n’ and 12 = 12 * n = 12n

Therefore,
12 * n = 78
=> 12n = 78
User Velizar Hristov
by
3.1k points
19 votes
19 votes
The answer is 12n = 78. Why? Well, the product of a number and 12 can be written as 12n because it is a coefficient which includes a variable for an unknown value. Since there is an unknown value (that’s called “a number” in this expression), 12n is the standard form of this representation. Since the product of a number and 12 is 78, we can use an equal sign followed by a 78 to show that 12n is equal to 78. If you need to better understand this, let me know and I will gladly assist you.
User Westandy
by
3.0k points