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Marizza181 [45]
2 years ago
9

there are 800 students at weaver middle school. to determine which mascot name is preferred by the students at the school, each

of the 30 teachers surveyed their two top-scoring students. would this be an appropriate sampling technique for the school to use?
Mathematics
1 answer:
daser333 [38]2 years ago
3 0

Answer:

This would not be an appropriate sampling technique because it is biased and it would not be fair for 60 students to choose a mascot for a school with 800 students.

Step-by-step explanation:

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3. Paula commutes 60 km each day for work, five days a week, nine months of the year. She travels 720
bezimeni [28]

Answer:

16,080 km.

Step-by-step explanation:

We want the total number of kilometers in one year.

so

4 weeks /month.

for Work:   9 months in the year  60 km/day  5 days/week

Family Visit :  720 km for 4 times a year

Personal:  200 km / month

Work total = 60 km/day * 5 days/week * 4week/month * 9 months

WorkTotal= 60*5*4*9 = 10,800 km

FamilyTotal= 4*720 = 2880 km

Personal = 200*12 = 2400 km

Total = 10,800 + 2880 + 2400 = 16,080 km

7 0
3 years ago
Need help idk how to slove this
Gemiola [76]

Hi!

I'm not sure how to slove this, but I do know how to solve it ;D

<h3>We can't know the exact value of y, but we can isolate y on one side. First, multiply by z on both sides. </h3>

\frac{x+y}{z*z}=3*z

x + y = 3 * z

<h3>Now subtract x from both sides.</h3>

x - x + y = 3 * z - x

<u>y = 3 * z - x</u>

<h2>The answer is y = 3 * z - x</h2>

Hope this helps! :)

-Peredhel

8 0
2 years ago
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96/4=24 beads in 1 bracelet
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The product of 6 and 12
34kurt

Answer:

72

Step-by-step explanation:

you just multiply

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IM DESPERATE I need help with #3. I would like it if you could explain how to do it because there are 2 more that are similar to
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$30 • 10%

10% = 0.10

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$30 - $3 = $27.
7 0
2 years ago
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