I really dislike these stupid algebra problems pretending to be geometry. To the question writer: the measures are equal, the angles are congruent.
The two angles are equal measure so
4x + 3 = 12x
3 = 8x
x = 3/8
KIH = (12 (3/8))° = 9/2 = 4.5°
Answer: 4.5°
Answer:
15
Step-by-step explanation:
4/5 = 12/blank.
well 12/4 is 3
3 * 5 is 15.
the blank is 15
Answer:
Emily has a higher relative score since her z-score is higher. This would mean she scored further above the mean than Xiaoyu.
Step-by-step explanation:
Find the z-scores by subtracting the score they got by the mean and then dividing by the standard deivation of their respective exams.
Xiaoyu:
z = 
= 1.5
Emily:
z = 
= 2.2
______
Emily has a higher relative score since her z-score is higher. This would mean she scored further above the mean than Xiaoyu.
Step-by-step explanation
b = 2h is given
2 b + h = 4 hours is given sub in the top equation
2 (2h) + h = 4
5h = 4
h = 4/5 hr or 48 minutes
"Bucket method"
.. (4)*(14%) + (x)*(8%) = (4 +x)*(10%) . . . . . liters and % are in each "bucket"
.. 56 +8x = 40 +10x . . . . . multiply by 100, eliminate parentheses
.. 16 = 2x . . . . . . . . . . . . . . add -40-8x, then divide by 2
.. 8 = x
8 liters of 8% lemonade should be added to make the mixture 10% lemon juice.
