Answer:
Spring.
Explanation:
Russia is in the northern hemisphere.
Answer: alternative D.
Explanation: Dr. DeVries should choose his sample population randomly in order for his research to be representative, even having a specific population, which is high school seniors, that he wants to study. By <u>choosing specifically students from an exclusive college preparatory school, he isn't considering how students from other schools might perform in his research test</u>. This would be a very important step for him to understand how the practice in problem solving affects the ability related to it. Otherwise, he will have a distorted result.
Answer:
15/29
Explanation:
Olive oil = 5/8
Vinegar = 1/4
Let us find a common multiple that would help us easily make computation
We know that 5/8 = 15/24
and that 1/4 = 6/24
That means the mixture requires olive oil to be 15 parts out of 24
and requires vinegar to be 6 parts out of 24.
This means that the composition of salt, pepper, and sugar would be:
1 - (15/24 + 6/24)
= 1 - (21/24) = 3/24
This means that each is approximately 1 part of the mixture.
Hence if Vinegar is doubled: we have 12 parts of 24, instead of 6 parts of 24
And sugar is omitted, that means Sugar = 0 part of 24 instead of 1 part of 24
Total parts become = 15 + 12 + 1 + 1+ 0 = 29
From this 29 parts, 15 parts are olive, hence the olive proportion becomes:
15 parts of 29 = 15/29
