Juan has 60 coins. If 30% of the coins are pennies, how many coins are non pennies?

70%

Otherwise known as 42.

60 coins x 0.30 = 18
therefore, 18 coins are pennies.....
60 coins - 18 coins = 42 coins

THEREFORE 42 coins are non-pennies

70 % of 60 = 42

42 are non pennies


state the %. 30%. out of 100 so 30/100 and total of sixty coins and unknown non-pennies so x/60

30/100 x/60

30*60=1800/100=18

x=18

60 coins x 0.7 = 42 non pennies

100%-30% = 70% that are non pennies

60coins total / 100%
x coins / 70%
do a cross multiplication
and get x = 42

or
0.70 is 70% so... 60*0.70=42 non pennies

30 percent of 60 is 18. 60-18=42

70%, or 42 non pennies.

If 30% are pennies, then 70% are not pennies. 70% x 60 coins = 42 coins.