Helen is plan a trip for three classes at her son’s school. school rules say that classes on trips must have 1 adult for every 6 children. one class has 24 children; one has 26 children; and the third has 28 children. each class has 1 teacher. how many other adults are needed for the trip?

step-by-step explanation:

the multiplicative inverse of a fraction a/b is b/a. for the multiplicative inverse of a real number, divide 1 by the number. for example, the reciprocal of 5 is one fifth 1/5 or 0.2, and the reciprocal of 0.25 is 1 divided by 0.25, or 4.

-2x + 7 = 7

subtract 7 from both sides.

-2x = 0

divide both sides by -2.

x = 0