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Phantasy [73]
3 years ago
5

Cheryl wants to find the number of hours seventh-graders do homework each week. There are 297 girls and boys in seventh grade. W

hich is the best way for Cheryl to get a representative sample without spending too much time?
Mathematics
1 answer:
Nadusha1986 [10]3 years ago
6 0

Answer:

The best way is for Cheryl to take a survey of a group of seventh graders and average that answer

Step-by-step explanation:

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In a sale, the cost of a coat is reduced from 85 to 67.5
IgorC [24]

Answer:

I’m assuming you’re talking about what percentage was taken off, so in that case the answer would be approximately 20.6%

Step-by-step explanation:
67.5/85 X/100

cross multiply then divide by 100 to find for x and you get 79.4117

then, subtract this number from 100 and you will get 20.6%

5 0
2 years ago
I need help. (image below)
vovangra [49]

Answer:

∠5 = 35°

Step-by-step explanation:

∠5 = ∠2  because they are alternate interior congruent angles

∠5 = 35°

7 0
3 years ago
In 2000, the median household income was $41,990. In 2010, it was $49,445. (Source: www.census.gov.)
pochemuha

The average rate of change in the median household income over this time period is $745.5

<h3>What is the average rate of change in the median household income over this time period?</h3>

The given parameters are:

2000, the median household income was $41,990.

2010, it was $49,445.

The average rate of change in the median household income over this time period is calculated as:

Average rate of change = (Difference in Income)/(Difference in years)

So, we have:

Average rate of change = (41990 - 49445)/(2000-2010)

Evaluate

Average rate of change = 745.5

Hence, the average rate of change in the median household income over this time period is $745.5

Read more about average rate of change at

brainly.com/question/8728504

#SPJ1

4 0
2 years ago
What is 4/5 - 3/10? Enter a zero or leave the whole number box blank to enter a fraction.
Ostrovityanka [42]

Answer:

Step-by-step explanation:

0.5

8 0
3 years ago
Read 2 more answers
There are 12 marbles in a bag, and the marbles are either yellow or green. Two marbles will be randomly picked from the bag, wit
ale4655 [162]

Answer:

d

Step-by-step explanation:


6 0
3 years ago
Read 2 more answers
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