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jacobgooding830
24.03.2021 •
Mathematics
5000 with a 44% Markdown
Solved
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Answers on questions: Mathematics
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Ответ:
New price is 2800
Step-by-step explanation:
total decrease in price 2200
Ответ:
4th option (x = 60)
Step-by-step explanation:
This is isosceles triangle so the angles are the same. Think of this as an mirror. AE is the same as BE so you can assume angle ABE is 30 degrees.
30+30=60
180-60=120
So angle AEB is 120.
That is supplementary angle so the other side must be 180-120=60.
So, the middle smaller triangle is isosceles as well, so BED and BDE are both 60.
60+60=120, 180-120=60
So angle x = 60