The swim and diving clubs at riverdale high school have a total of 55 members and no student is a member of both teams. 1/3 of the swim team members are seniors and 1/5 of the diving team members are seniors. if there are 13 seniors in the two clubs, how many members does each club have? let x represent the total number of swim club members and let y represent the total number of diving club members.

We can write two equations from the given information.

Let x represent the total number of swim club members and let y represent the total number of diving club members

Solving these 2 equations simultaneously for x and y will give us the number of members in swim and diving clubs at Riverdale High School.

We can write first equation as , and substitute x into the second equation to get,

Since , plugging in into this gives .

ANSWER: Swim club has 15 members and Diving club has 40 members.

mr. flanders’ class sold 47 doughnuts and   mr. rodriquez’s class sold 38 cartons of milk

step-by-step explanation:

let x be the number of doughnuts sold by mr. flanders’ class and y be the number of cartons sold by mr. rodriquez’s class.

1. together, the classes sold 85 items, then

x+y=85.

2. both classes earn earned $104.49 for their school. if doughnuts were sold for $1.35 each, then x doughnuts costed $1.35x. if cartons of milk were sold for $1.08 each, then y cartons costed $1.08y. hence,

1.35x+1.08y=104.49.

3. solve the system of two equations:

4th option is correct xy=-10

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