It's a scalene triangle, a triangle where all of the sides are different lengths.
So if the exterior angle is 130°, then the inner angle is 50°.
The total of the inner angles of a triangle is (n-2)180°=180°, so 180°-50°=130°
With the remaining two angles =130° and they are both in the ratio of 2:3, one angle has a measure of 52° and 78°.
Thus the measure of the largest angle is 78°.
Answer: <em>If you round it, should be about 5 hours.</em>
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Answer:
4 personal training sessions
Step-by-step explanation:
You would first create 2 expressions, one to represent each situation
Silver Gym: 25 + 30x
Fit Factor: 65 + 20x
Then if you want to find when the costs would equal each other, set them equal to each other.
25 + 30x = 65 + 20x
Then solve:
25 + 30x - 20x = 65 + 20x - 20x
25 + 10x = 65
25 - 25 + 10x = 65 -25
10x = 40
10x / 10 = 40 / 10
x = 4
She will have to attend 4 personal training sessions to make the total cost at the two gyms equal.
