Astore recived a delivery that consists of x boxes that weight 30 pounds each and y boxes that weight 20 pounds each. there are 64 total boxes in the delivery and they have combined weight of 1400 pounds .enter the number of boxes in the delivery that weight 20 pounds.

This is what i found “an explicit formula designates the nth term of the sequence, as an expression of n (where n = the term's location). it defines the sequence as a formula in terms of n. this example is an arithmetic sequence(the same number, 5, is added to each term to get to the next term).” i hope this you for what your looking for. can you plz mark me brainliest?