3 years ago

PLEASE HELP ME!!! THANK YOU!

Mathematics

2 answers:

Troyanec [42]3 years ago

4 0

Answer:

82*

Step-by-step explanation:

10x+8 = 12x-10

18 = 2x

X=9

Angle 1 = 98*

Angle 3 = 98*

180 - 98* = 82*

Aleks [24]3 years ago

3 0

Answer: 82

Step-by-step explanation:

i just took the test

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$\bf \stackrel{\textit{substituting in the 2nd equation}}{0.65\left( \boxed{40-y} \right)+0.9y=32}\implies 26-0.65y+0.9y=32 \\\\\\ 26+0.25y=32\implies 0.25y=6\implies y=\cfrac{6}{0.25}\implies \blacktriangleright y=24 \blacktriangleleft \\\\[-0.35em] ~\dotfill\\\\ \stackrel{\textit{since we know that}}{x=40-y\implies }x=40-24\implies \blacktriangleright x=16 \blacktriangleleft$