Desmond has w marbles and Mandy has 1/2 w marbles. Desmond gives one-tenth of his marbles and Mandy gives two-fifth of her marbles to their cousin Joel. Write an expression for the number of marbles Joel receives.
? + ? = ?
Joel received ? marbles
1 answer
w(1/10) + (1/2 w)(2/5) = w(1/10 + 1/5) = _____
5 answers