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Lisa [10]
3 years ago
14

Another one: (12 - 7.5) - 7

Mathematics
1 answer:
mixas84 [53]3 years ago
5 0

Answer:

-2.5

Step-by-step explanation:

Plugged into calculator

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natima [27]

6.4$

Solution:

Divide 40 and 100(there must always be 100 when solving percentage) then it would be equal to 0.4

after it Multiply it to 16

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marusya05 [52]
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Step-by-step explanation:

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3 years ago
Consider kite WXYZ. What are the values of a and b? a = 4; b = 10. a = 4; b = 40, a = 8; b = 10, a = 8; b = 40
Brut [27]

Check the picture below.

let's recall that a kite is a quadrilateral, and thus is a polygon with 4 sides

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\bf 3b+70+50+3b=360\implies 6b+120=360\implies 6b=240 \\\\\\ b=\cfrac{240}{6}\implies b=40 \\\\[-0.35em] ~\dotfill\\\\ \overline{XY}=\overline{YZ}\implies 3a-5=a+11\implies 2a-5=11 \\\\\\ 2a=16\implies a=\cfrac{16}{2}\implies a=8

3 0
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A and B are complementary angles. If A = (x – 23)° and m
Lana71 [14]

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∠ B = 85°

Step-by-step explanation:

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2 years ago
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