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Alla [95]
3 years ago
11

A balance scale shows that 12 + 5 = 17. If five units are removed from one side, what needs to be done to the other side to keep

the scale in balance?
Mathematics
1 answer:
DerKrebs [107]3 years ago
6 0
You would need to add 5 to the opposite side so the balance scale stays 17.
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The initial population of bacteria in a lab test is 400. The number of bacteria doubles every 30 minutes. Predict the bacteria p
vladimir1956 [14]
25,600 will be the bacteria population after doubling every 30 minutes for 3 hours.
6 0
3 years ago
Suppose you visit a restaurant with a salad bar containing the following choices: 10
Vikentia [17]

Answer:

3600

Step-by-step explanation:

multiply all of the choices

10x15x6x4

8 0
3 years ago
The test scores of 40 students are listed below. Find P85.
SIZIF [17.4K]

Answer:

Option A (89).

Step-by-step explanation:

Percentile is a statistic in which the an element at a certain percentage position is determined. To calculate the percentiles accurately, it is important that the data is present in the ascending order. Percentile is an important concept in data analysis. Interestingly, 50th percentile is the median of the data. The difference between the 75th and the 25th percentile is the interquartile range. To find the 85th percentile of the data, calculate 85% of 40, which is the number of elements in the data set. 40 * 85/100 = 34. The number on the 34th position is the 85th percentile of the data. It can be observed that 89 is on the 34th position. Therefore, Option A is the answer!!!

8 0
3 years ago
A pizza chain records how long it takes customers to receive their delivery orders. Suppose the distribution of these delivery t
SCORPION-xisa [38]

Answer:

The probability that the mean delivery time from the sample of 25 orders xˉ is farther than 2 minutes from the population mean cannot be calculated.

Step-by-step explanation:

As given in the question statement, the distribution of delivery times is strongly skewed to the right. The population distribution is skewed to right. Too much skewed distribution can cause the statistical model to work ineffectively and affects its performance. The probability can also not be calculated because the sample size is too small. Small sample size affects the results and makes them less reliable because it results in a higher variability and likelihood of skewing the results.

5 0
3 years ago
Lenny is 3 times older than Max. When you subtract Max's age from lenny's age, you get 24. How old is Lenny and how old is max?
Helga [31]
Let Max be x years.

Then Lenny is  3x  years

When we subtract Max's age from Lenny's age we obtain  3x-x

This is equal to  24  

Putting all together we have

3x-x=24

2x=24

x=12

Therefore Max is 12 years and Lenny is 36 years
8 0
3 years ago
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