Animallover100
29.10.2019 •
Mathematics
The numerator and denominator of a fraction are in the ratio of 1 to 4. if the numerator and denominator are both increased by 2, the fraction is now equal to 2/3. if n = the numerator and d = the denominator, which of the following systems of equations could be used to solve the problem?
a.4n = d and 2n + 4 = 3d + 6
b.4n = d and 3n + 6 = 2d + 4
c.n = 4d and 3n + 6 = 2d + 4
d.n = 4d and 2n + 4 = 3d + 6
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Ответ:
Angle 1: 130
Angle 3: 130
Angle 5: 50
Angle 6: 130
Step-by-step explanation:
If angle 2 is 50, that means 4,5, and 7 are 50 as well
Also, if we know angle 2 is 50, we know 1,3,8, and 6 are 130 since a line is always 180 (so subtract 50)
Let me know if you need more help!!