Hello!
The chance of getting a football card is 7 / 10
The chance of then getting a basketball card is 3 / 10
Multiply these two numbers
7/10 * 3 / 10 = 21/100
21/100 = 0.21
The answer is 0.21 or 21%
Hope this helps!
A. 33x+132
B. 3/2 x(11-10x)
C.68.2+25x
Hope this helps
Please do take the time to read my explanation, it will only help you if you do...
Solution
if the heart beats 72 beats per minute and 1 beat pumps 70 MLs of blood:
70ml*72=5040
Hence, on average the human heart beats about 5040 mililiters in one minute.
