Answer:
To sum consecutive numbers we use the formula:
n * (n+1) / 2
1 through 55 = (55 * 56) / 2 = 1,540
1 through 9 = (9 * 10) / 2 = 45
10 through 55 = 1,540 -45 = 1,495
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EDITED
Gee, it seems I added ALL numbers from 10 through 55
ALL ODD numbers from 10 through 55 sum to
759
Step-by-step explanation:
Answer:
C) 70%
Step-by-step explanation:
To find his percentage we take part over total
14/20
We want it over 100, so multiply the top and bottom by 5
14*5
---------
20*5
70/100
Percent means out of 100
so we have 70 percent
70 %
Answer:
The area of the composite area is 400 square millimeters.
Step-by-step explanation:
The area of the composite figure (
), in square millimeters, is found by multiplying the area of the equivalent rectangle, in which a semicircle of the original rectangle is move to the opposite side of the figure, so that quantity of area is conserved:
(1)
Where:
- Width, in millimeters.
- Height, in millimeters.
If we know that 
, the area of the composite figure is:
The area of the composite area is 400 square millimeters.
Answer:
.446153846
Step-by-step explanation:
Well, 29/5 is 5.8. We have to divide 5.8 by 13 since tehre are 13 beads.
Answer:
-27,0
Step-by-step explanation:
I think, not entirely sure tho.
