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noname [10]
3 years ago
8

What do you suppose you're supposed to do here

Mathematics
1 answer:
kumpel [21]3 years ago
5 0
Count how many squares are shaded in and choose the corresponding fraction i guess?
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Do you know how set is going { London,Paris,<br> Stockholm,.....} ?
drek231 [11]

Answer: They're capitals of cities.

Step-by-step explanation:

You could continue the set with Madrid, Bucharest, Sofia, Luxembourg, Berlin, Rome, Athens... and so on.

4 0
3 years ago
The data list shows the scores of ten students in Mr. Smith's math class. 61, 67, 81, 83, 87, 88, 89, 90, 98, 100 What is the st
cluponka [151]

Answer:

12.3

Step-by-step explanation:

Step 1

We find the mean

The data list shows the scores of ten students in Mr. Smith's math class. 61, 67, 81, 83, 87, 88, 89, 90, 98, 100

Mean = Sum of terms/Number of terms

Number of terms = 10

Mean = 61 + 67 + 81 + 83 + 87 + 88 + 89 + 90 + 98 + 100/10

Mean = 844/10

Mean = 84.4

Step 2

Standard deviation

The formula for sample standard deviation =

√(x - Mean)²/n - 1

= √[(61 - 84.4)² + (67 - 84.4)² + (81 - 84.4)² + (83 - 84.4)² + (87 - 84.4)² + (88 - 84.4)² + (89 - 84.4)² + (90 - 84.4)² + (98 - 84.4)² + (100 - 84.4)²]/10 - 1

=√ 547.56 + 302.76 + 11.56 + 1.96 + 6.76 + 12.96 + 21.16 + 31.36 + 184.96 + 243.36/10 - 1

= √1364.4/9

= √151.6

= 12.31259518

Approximately to the nearest tenth = 12.3

The standard deviation = 12.3

6 0
2 years ago
Sally can paint a room in 8 hours while it takes steve 7 hours to paint the same room. how long would it take them to paint the
77julia77 [94]
Rate for Sally is 1 room per 8hrs
rate for Steve is 1 room per 7hrs

combined rate:
1/8 + 1/7 = 1/T
7/56 + 8/56 = 1/T
15/56 = 1/T
56/15 = T
3 11/15 = 3 hrs 44 min
3 0
3 years ago
In a sale, there is 50% off all prices. A chair costs ?17.50 in the sale. How much was it before the sale?
Valentin [98]
In order to solve this problem, you double the sales price!

$17.50 x 2 = $35.00

The original price would be $35.

Hope this helps!
8 0
3 years ago
What is greater than 3.43
zalisa [80]
Specify? Not sure how to answer
6 0
3 years ago
Read 2 more answers
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