krisalynbrown krisalynbrown

18-02-2020
Mathematics

contestada

Find the measure of two supplementary angles, C and D, if C=6x-4 and D=4x+9

X=____________
m m

Respuesta :

igoroleshko156 igoroleshko156

18-02-2020

Answer:

x = 17.5 mm

Step-by-step explanation:

Supplementary means that two angles adds up to 180 degrees.

If C and D are supplementary, that means that they equal to 180 degrees.

Combine like terms: 6x - 4 + 4 + 4x + 9 - 9 = 180 + 4 - 9

10x / 10 = 175 / 10

x = 17.5

So, x = 17.5 mm

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