Answer:
196
Step-by-step explanation:
1+2+3+4+......+25+26+27 = (1+27) + (3+25) + (5+23)+(7+21) + (9+19) + (11+17) + (13+15)
= 28 x 7 = 196
It's like area of trapezoid of bases: 1, 27 and height of 14
Answer:
No, not congruent
Step-by-step explanation:
Triangles cannot be considered congruent based on the fact that all 3 angles are congruent
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Answer:
Population 120 given the survey, sample 90 who answered the survey.
Step-by-step explanation:
The entire amount of employees who even received the surveys at all was 120. Because the total number was 120, 120 is the population.
Only 90 out of 120 surveys were received, so 90 is the sample because it is part of 120.
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Answer:
Pour 7 times
Step-by-step explanation:
In order to get 3 equal volumes when starting with a 9L jug, each volume must be 3L.
1) Pour from the 9L into the 5L
2) Pour from the 5L into the 2L (resulting in 3L leftover in the 5L jug)
Now we have 1 jug of 3L
3) Pour the 3L from the 5L jug into the 4L jug (to get it out of the way)
4) Pour the water from the 2L back into the 9L jug (which is now 6L fill)
5) Pour water from the 9L jug into the 5L jug
6) Pour from the 5L jug into the 2L jug resulting in 3L leftover in the 5L jug
Now we have 2 jugs of 3L
7) Pour water from the 2L jug into the 9L jug which has 1 L of water in it.
Congratulations you now have 3 jugs, 3L each.
