Answer:
24
Step-by-step explanation:
Use PEMDAS:
Parenthesis:
(27-19)=(8)
Then multiplication:
6+(2*3)+4+(8)
6+(6)+4+(8)
Then add everything:
24
Well I am assuming you want to compare them or something so yeah:
You have to find a common denominator of 4 & 6, so you could multiply them together, this makes 24. Because you have to do the same thing to the top and the bottom, you have to multiply 2/4 (which is now 2/24) by 6, and the 2/6 (which again is 2/24) by 4 which leaves you with 12/24 (2/4) and 8/24 (2/6).
We can simplify these fractions by dividing them, but as you may know 12 is half of 24 so 12/24 would also be 1/2.
If you keep dividing by 2 you will find that 8/24 is also equal to 1/3. This is easier to find out by the beginning number but I mentioned it anyway because I didn't understand what you were asking.
Overall if you noticed when comparing 2/4 and 2/6 we found that Mei Lyn painted more wall than Mario.
Answer:
0 < p < 0.075
Step-by-step explanation:
Solution:-
According to the rule of three, when we have a sample size = n.
and x = 0 successes ( The lowest possible value of true population proportion ). Then we are 95% confident that the upper bound of the true population proportion is given by:
3 / n
If n = 40 couples use a method of gender selection and each couple has a baby girl, the the possibility of successes is zero. This calls on for the use of Rule of three to determine the upper bound for the true population of couple having a baby girl.
- The 95 % upper bound for true population proportion of all the babies born are girl is determined by:
p = 3 / n = 3 / 40
p ≈ 0.075
- The number of successes were = 0, hence the lower bound for the population proportion is 0 and the upper bound was calculated above. Hence,
0 < p < 0.075
- The range of true population proportion.
Answer:
15.625
Step-by-step explanation:
old number = 288
new number = 243
percent decrease = (old - new / new ) * 100
= (288 - 243 / 288) * 100
= 45 / 288 * 100
= 15.625
