___ + ___ = 25
___* ____= 126
the two numbers are 7 and 18 :)))
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Answer:
1/30
Step-by-step explanation:
I'm assuming you're asking for three cards being drawn, but if you're actually asking for two cards, the probability is 0. You have no chance of drawing three pink cards if you only draw two cards.
If you mean that three cards are drawn in a row, do the following:
The probability is defined as the number of pink cards / number of all cards.
- The first probability is 4/10, because there are 10 cards, and 4 are pink.
- Next, we don't replace the pink card we draw, so there are 9 cards left, and 3 are pink. The second probability is 3/9.
- Following the same logic, the third probability is 2/8.
We know these are independent events, so we must multiply them together to get the total probability.
4/10 * 3/9 * 2/8 = <u>1/30 is the probability of drawing three pink cards.</u>
Answer:
The mean of the combined group of 30 students is equal to 56.67
Step-by-step explanation:
Let
x ----> The sum of the notes of the 20 papers
y ----> The sum of the notes of the 10 papers
we know that
60=x/20 -----> x=60*20=1,200
50=y/10 -----> y=50*10=500
The mean of the combined group of 30 students is equal to
(x+y)/30
substitute
(1,200+500)/30=56.67
Answer:
the rate of change is 3
Step-by-step explanation:
if im wrong im sorry but if im right give me brainliest