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diamong [38]
3 years ago
5

Luna want to know what proportion of the 7th graders at her school are interested in taking art class. Which is the best group s

urvey to find this information.
A:ask all of her classmates in her homeroom who show up for school one day? B:ask every person who is waiting at her bus stop one afternoon. C:ask every 12th person who leaves school one afternoon. roll dice to determine which person to ask first. D: ask all her friends to ask their friends. PLEASE HELP ME!!
Mathematics
2 answers:
Temka [501]3 years ago
7 0
C. Ask every 12th person who leaves school one afternoon. Roll dice to determine which person to ask first.
pentagon [3]3 years ago
5 0

Answer:C ask every 12th person one day

Step-by-step explanation:

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WHO WOULD WIN IN A FIGHT?<br> A SHAOLIN MONK vs A NAGA SADHU
sertanlavr [38]

Answer:

Shaolin Monk

Step-by-step explanation:

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3 0
2 years ago
If P(A)=0.4, P(A and B)=0.2,and P(A or B)=0.5, What is P(B)
Vladimir [108]

Answer:

\boxed{\ P(B)=0.3 \ }

Step-by-step explanation:

Hi,

We know that

P(A or B)=P(A)+P(B)-P(A and B)

so P(B)= P(A or B) - P(A) + P(A and B)

so

P(B) = 0.5 - 0.4 + 0.2 = 0.3

thanks

6 0
3 years ago
One cold night the temperature was 0 degrees at 8 p.m. The temperature dropped at a constant rate from 8 p.m. to midnight. At mi
Diano4ka-milaya [45]
Let y be the temperature
Let m be the rate of temperature drop in degrees per hour
Let x be the number of hours elapsed since 8PM
The initial temperature (at x = 0) is 0
y = mx
Four hours from 8 PM, the temperature was -16.8 degrees
-16.8 = m(4)
m = -4.2 degrees per hour
At 9PM, one hour will have elapsed.
y = -4.2(1)
y = -4.2 degrees
7 0
2 years ago
Order from greatest to least:show your work❗️<br><br> 12,-4,8,-3,0
Aneli [31]
The answer would be 12, 8, 0, -3, -4.

The answer is that because 12 is a positive number so that's higher than negative, 8 goes second because its positive and higher than the others, 0 is third because negatives numbers are LOWER than 0, not higher, -3 is next because higher negative numbers are always lower, not greater than smaller numbers because -8 is LOWER than -4 since its on the left of a number line.
6 0
3 years ago
You build and sell toy cars for $36 each. So far, you have built 25 toy cars. How many more toy cars will you have to build and
Naily [24]
Multiple what you have already: 36x25 = 900
Subtract that from how much you need to earn:
1620-900=720
Divide how much more money you need by how much money each car is:
720/36= 20

You need 20 more cars
3 0
3 years ago
Read 2 more answers
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