The probability of the black marble will be 35.7% because 100/(9+5) is 7.14 and you multiply that by 5 to get 35.7%.
HCF= highest common factor
LCM= least common multiple
Finished:Left
8:1
8/1 = 72/x
Cross Multiply
8x=72
divide each side by 8
x=9
She already finished 72 and has 9 remaining
Total = Finished + Remaining = 72 + 9 = 81
Answer:
3 tens
Step-by-step explanation:
4 tens and 5 ones is 45
so 45 minus 15 is 30
so 3 tens