Johnny has 30 marbles. Mark has m marbles, if Johnny has 10 times as many as mark, write an equation that shows how many marbles mark has.
10 m = 30
m = ?
To write an equation that represents the number of marbles Mark has, you can use the information given: Johnny has 30 marbles, and he has 10 times as many as Mark.
Let's assume Mark has m marbles. According to the given information, Johnny has 10 times as many marbles as Mark. So, the equation can be written as:
10 * m = 30
This equation states that to find the number of marbles Mark has, you multiply his number of marbles (m) by 10, which equals 30 (the number of marbles Johnny has).
Let's assume the number of marbles that Mark has is represented by the variable "m". Since Johnny has 10 times as many marbles as Mark, we can express this relationship as:
Johnny's marbles = 10 * Mark's marbles
Since Johnny has 30 marbles, the equation becomes:
30 = 10m
This equation shows how many marbles Mark has in terms of the variable "m".