The mean of five numbers is 21. If one number is 25, what is the mean of the
other 4 numbers?

5x21= 105

105-25= 80

80÷4= 20

the mean of the other 4 numbers is 20

answer: was that a question or answer?

step-by-step explanation:

3/4 ÷ 3/4

step-by-step explanation:

basically divide any proper fraction with itself to fit the criteria.

so if we are using 3/4, then:

3/4 ÷ 3/4 = 1

so 1 is the quotient.

and the numerators for both these fractions is 3.   and if we divide the numerators:

3 ÷ 3 = 1

we see that quotient is equal to our original quotient as well.