<span>A. What was the cost of the pages in Dorothy's album?</span>
446776654332251010102003404
Answer:
C. It is just right.
Step-by-step explanation:
We want to compare the ratios ...
bags : liters = 15 : 2
and
bags : liters = 90 : 12
If we multiply the numbers of the first ratio by 6, we see they are identical to those in the second ratio:
(15)(6) : (2)(6) = 90 : 12
The ratio of bags to liters for Peggy's tea matches the ratio Kermit likes. He will think it is just right.
Answer:
(14, 22)
Explanation:
The amount of time that customers have to wait for their food is normally distributed with:
• Mean = 18 minutes
,
• Standard deviation = 4 minutes.
The Empirical Rule
For normal distributions, the empirical rule states that:
• 68% of observed data points will lie inside one standard deviation of the mean.
,
• 95% will fall within two standard deviations
,
• 99.7% will occur within three standard deviations.
By the empirical rule, 68% of observed data points will lie inside one standard deviation of the mean.
Therefore, the interval of minutes that the middle 68% of customers have to wait is:
The interval is (14, 22).
Answer:
Choice D. a - b = 12 and a = 3b + 5
Step-by-step explanation:
so |a - b| = 12
a = 3b + 5
3b + 5 - b = 12
2b + 5 = 12
b = 7/2
what if b - a = 12
b - 3b - 5 = 12
-2b = 17
b < 0 no.
choice A. works so does choice D.)