???? divided by nine equals ten.
also...
eighty four divided by ???? equals forty two.
9 * 10 = ?
84 / 42 = ?
To solve the first equation "???? divided by nine equals ten," we need to find the missing number or variable that, when divided by nine, equals ten.
To do this, we can substitute the missing number with a variable, such as "x."
Using this notation, the equation becomes:
x ÷ 9 = 10
To solve for x, we can rearrange the equation. Since division is the inverse operation of multiplication, we can multiply both sides of the equation by 9:
(x ÷ 9) * 9 = 10 * 9
This simplifies to:
x = 90
So the missing number or variable in the first equation is 90.
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Now let's move on to the second equation: "eighty four divided by ???? equals forty two."
Similarly, we can again use a variable, let's say "y," to represent the missing number.
The equation becomes:
84 ÷ y = 42
To solve for y, we can rearrange the equation by multiplying both sides by y:
(84 ÷ y) * y = 42 * y
Simplifying this expression gives us:
84 = 42y
Next, we can isolate y by dividing both sides of the equation by 42:
84 ÷ 42 = (42y) ÷ 42
Simplifying further:
2 = y
So the missing number or variable in the second equation is 2.
Therefore, in the equation "eighty four divided by ???? equals forty two," the missing number is 2.