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ivanzaharov [21]
3 years ago
9

Somebody please help me with this

Mathematics
1 answer:
kotegsom [21]3 years ago
3 0

Answer:

80 \degree + 35 \degree + x = 180 \degree \\ x = 180\degree - 115\degree \\ x = 65\degree

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Katie and becca each bought a new book for $50 . Katie sold her book to the bookstore for 25% less than the original price. . Be
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\text{Lets find the prices in which they sold their books for}\\\\\text{Katie:}\\\\\text{She sold the book for 25\% less than the original price, so multiply 50 by}\\\text{0.25 and subtract}\\\\50*0.25=12.5\\\\50-12.5=37.50\\\\\text{Becca:}\\\\\text{Becca sold the book for 40\% less than the original price, calculate how}\\\text{much she sold it for}\\\\50*0.40=20\\\\50-20=30\\\\\text{We need to find how much more money Katie made than Becca, so subtract}\\\text{Becca's cost from Katie's cost}\\\\37.50-30=7.50\\\\\boxed{\text{Katie received \$7.50 more than Becca}}

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3 years ago
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PTG has side lengths of 18 cm, 27 cm, and 13 cm. which type of triangle is PTG? The answer is obtuse.
Verizon [17]
To know what kind of triangle is it. use the pythagorean theorem:
A^2 + B^2 = C^2,
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if A^2 + B^2 < C^2 it is obtuse triangle

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3 years ago
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Step-by-step explanation:

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pashok25 [27]

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