Represent 24 as a sum of two numbers, first number from first die and second number from second die.
24=19+5=18+6=17+7=16+8=14+10=13+11=12+12=11+13=10+14=9+15=8+16=7+17=6+18=5+19=4+20 (the sums 15+9 and 20+4 are absent, because there aren't numbers: 20 on the first die and number 9 on the second die). Totally, you receive 15 different representations of 24.
<span>The probability that the sum of the two numbers facing up will be 24 is
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</span><span>
(here
means that you have 20 possibilities to roll first number or blank face on the first die and 20 possibilities to roll number or blank face on the second die).
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Each child has a 50% chance to be a girl and 50%chance to be a boy so with 4 children the probability is
Answer:
60-20
170 is for the circle
170 - twenty = 150
please solve it again
but i guess this is the answer
0.3636... repeating = 4/11 .
I just recently learned how to find the fraction
that's equal to a repeating decimal.
-- Take the group of digits that repeats. (in this one, it's 36)
Write it on top of the fraction.
36 /
-- On the bottom of the fraction, write the same number of 9's .
For this one, it's 36 / 99 .
-- There's your fraction.
Simplify it if possible.
Divide top and bottom of this one by 9: 36/99 = 4/11 .
Is that cool or what !