I bought a package of 15 expo markers, 20% were black. How many markers were blue?
20%=3 were black, so 12 markers were not black.
No way to tell how many were blue.
To determine the number of blue markers, we need to know the total number of markers in the package. Since you mentioned that there were 15 Expo markers in total, we can use this information to find the answer.
First, we need to determine the number of black markers. Given that 20% of the markers were black, we can calculate it by multiplying 15 (total markers) by 20% (0.20):
15 markers * 0.20 = 3 black markers
Since we know the total number of markers is 15 and 20% were black (3 markers), we can subtract the number of black markers from the total to get the number of blue markers:
Total markers - Black markers = Blue markers
15 markers - 3 markers = 12 blue markers
Therefore, there are 12 blue markers in the package.
First calculate 20% of 15
20*15/100
300/100 =3
3 of the markers were blue.
I hope that helps!!!