9514 1404 393
Answer:
y = 12
Step-by-step explanation:
Triangles ABD and CBD are congruent, so DA = DC:
3y +6 = 5y -18
24 = 2y . . . . . . . . add 18-3y; next, divide by 2
12 = y
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<em>Additional comment</em>
In some variations of this question, you may be asked to solve for x. Since the angles are equal, you have ...
3x -1 = 34 -2x ⇒ 5x = 35 ⇒ x = 7 . . . (consistent with ∠ABC = 40°)
It’s the second and the fourth choice.
Answer:
about 54% of the people surveyed were females
Step-by-step explanation:
to calculate the % of females out of everyone, you need to add everyone up, and then add up only the females.
119+150+447+735+1174+103+171+512+710+756=4877
4877 is the Total number of people surveyed
119+150+447+735+1174=2625
2625 is the total number of females surveyed
so
to convert 2625/4877 to a %, first turn it into a decimal
2625/4877=0.538
now multiply 0.538 by 100
0.538*100=53.8%
so about 54% of the people surveyed were females
Answer:
64.6 km/h
Step-by-step explanation:
18:14 = 18h 14'
1h = 60'
18h = 17h + 60'
18h14' = 17h + 60' ´14' = 17h 74'
then:
17h 74'
-17h 22'
= 0h 52'
the train travelled 56km at 52 minutes
56km/52minutes
1 hour = 60 minutes
52 minutes = 52/60 = 0.86667 hours
then:
56km/52minutes = 56km/0.86667hours
= 64.615 km/hours
