3 years ago

Need help with this questions please.

Mathematics

2 answers:

krek1111 [17]3 years ago

7 0

Answer:

Below

Step-by-step explanation:

Angle on a straight line =180

$40\° + (15x +20)\°=180\°\\\\40 \°+(15(8)+20)\° =180\°\\\\40\°+(120+20)\°=180\°\\\\40\°+140\°=180\°\\\\180\°=180\°$

hammer [34]3 years ago

4 0

Answer: x=8

Step-by-step explanation:

15*8 = 120 + 20 = 140

140+40 = 180 a perfect line

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