Answer:
Theoretical probability: 50/100 or 50%
Experimental probability: 12/20 or 60%
Step-by-step explanation:
Let's find out both probabilities asked.
Theoretical probability:
In the whole bank, here are 100 coins (20 nickels + 30 quarters + 50 one-dollars), among which there are 50 one-dollar coins. So the probability to pick up a one-dollar coin is 50 out 100, so...
TP = 50/100 or 50%
Experimental probability:
For the experimental probability, we know Jonathan picked out 20 coins, out of which 12 were one-dollar coins, so the probability is 12 out of 20...
EP = 12 / 20 = 60%
Answer:
The answer is A) F
Step-by-step explanation:
So for this, we will be applying the <u>zero product property</u>, which is <u>"if a x b = 0, then either a = 0 or b = 0 or both a and b = 0"</u>. In this case, a = x + 13 and b = x - 7. Solve them separately:
<u>Your answer is x = -13 and 7.</u>
<span>Safarina has 34 out of 99 hits.
Find her battling average.
=> 34 hits
=> 99 hits in all
x = value of percentage
=> 34 = x * 99
=> 34 = 99x
Now, let’s divide both sides with 99
=> 34 / 99 = 99x / 99
=> 0.3434343 = x (0.343434… is a repeating decimals, so need to round off to the nearest hundreds)
=> 0.34 = 34/100
Thus, the percentage of Sarafina’s hit is 34%</span>
