Three friends were playing a game of marbles. At the end of the game, Marcy had 25% of the marbles, Roger had21of the marbles, and Ann had the rest of the marbles. If there were 100marbles altogether, how many marbles did Ann have at the end of the game​

54

Step-by-step explanation:

total no. of marbles=100

no. of marbles Marcy had

=25% of 100

=25/100×100

=25

no. of marbles Roger had=21

Let the no. of marbles Ann had=x.

So, 25+21+x=100

46+x=100

x=100-46=54

Therefore, Ann had 54 marbles at the end of the game.

if x decreases by 4 then y increases by 10

step-by-step explanation: