3 years ago

Can someone please help me and explain how to solve this question

1 answer:

Alex3 years ago

7 0

I see this triangle is isosceles. Thus, it has 2 sides of length 8 and 2 angles of measure 30 degrees.

(30 deg) + (30 deg) + (angle A) MUST add up to 180 degrees.

Thus, 60 deg + Angle A = 180 deg, so that Angle A = (180 - 60) deg, or 120 deg (answer)

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2 years ago

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SCORPION-xisa [38]

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Step-by-step explanation:

Let

x----> the number of hours worked at the donut shop

y----> the number of hours worked at the school bookstore

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x+y=20

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Substitute equation A in equation B and solve for y

10.25(20-y)+8.75y=196

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10.25y-8.75y=205-196

1.5y=9

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3 years ago