The first answer, the Data is the same as the answer
Answer:
(5,0),(6,0)
Step-by-step explanation:
1. Since 12 took both, subtract 12 from 20 and 25.
Now we have 8 taking only chemistry, 13 taking only biology, and 12 taking both. Add all those together to get 33.
Subtract 33 from 50 to get 17, which is the number of students taking neither.
2. He had 3 nickels, 1 quarter, and 6 dimes.
This is an equation that represented his coins:
3n + 1q + 6d = 1.00
3 x .5 = .15 1 x .25 = .25 6 x .10 = .60 .60 + .25 = .85 .85 + .15 = 1.00
3. Add together 7 and 11 to get the 5th and 6th graders: 18 students.
The remaining 4th graders make up 1/3 of the team, so 18 is 2/3 of the team.
Find 1/3 by dividing 18 by 2 to get 9.
There are 9 4th graders.
Hope this helps!
Step-by-step explanation:
????
if every adult couple (2 people, 1 man, 1 woman) has 3 or more children, then there are automatically more children than adults.
it is absolutely possible that there are more boys than girls, as it is also possible that there are more girls than boys.
after all, this is a 50% chance, and it is very unlikely that a 50% chance has a true 50/50 split in real events or experiments.
like when flipping a coin. heads and tails will almost never be mathematically precisely split. there will be more heads or more tails.
this might be due to imbalances in the flipping process or in the coin balance itself. or, if truly balanced, it will achieve the full 50/50 split after infinite attempts.