Randomly assigned group. the art class isn't random and only consists of a select type of people--it is not a representative sample; maybe more left handed people enjoy art than do right handed people! therefore, even though the randomly assigned group is smaller, it is the better estimate.
Answer:
Step-by-step explanation:
<u>Ratio of cookies to brownies:</u>
- 16 : 30 = simplify by reducing both numbers twice (the only common factor)
The answer is 30.You get th is by multiplying 4 by 3 first than the answer by 2.5.Which gives your final answer 30.
Answer: 137 cans are left of cola.
Step-by-step explanation: First we want to find the total amount of cola Trey bought. Each pack contains 8 cans, so multiply 18 packs by 8 cans to find the total amount of cans he bought. 18 x 8 = 144 total cans of cola.
Since Trey drank 7 of the cans, simply subtract 7 from 144, 144 - 7 = 137 total cans of cola remaining.
