Answer:
-1.70588235294
1. X3, 15x - 10y = 80 15x - 7y = 51
-17y = 29
2. 8 = 1/60 + a. 8 - 1/60 = 7.98333333333
6 = 1/80 + b. 6 - 1/80 = 5.9875
13.9708333333
3. I genuinely dont know sorry.
4. Pencil = $0.05. Pen = $1.05
Step-by-step explanation:
Answer:
Solution one is correct and solution 2 and 3 are incorrect
Step-by-step explanation:
You simply make an equation because for vertical angles 2 angles that are across from each other have the same value (in this case 2x+30 and 5x-36.)
The equation: 2x+30=5x-36---->3x=66----> x=22
Solution 1 is correct.
Hope this helped!
Try this solution:
1. according to the condition

2. for more details see the attached graph.
Answer: [0;+oo)
Answer:
615.44 m²
Step-by-step explanation:
the area of circle = 3.14 x 14² = 3.14×196
= 615.44 m²
I would say it would be 55 and if this question.If you get the answer incorrect my apologies
Step-by-step explanation:
40 + y + y + 30 = 180
2y + 70 = 180
2y + 70 (-70) = 180 (-70)
2y = 180 - 70
2y = 1102y/2 = 110/2
y = 110/2
y = 55
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