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krok68 [10]
3 years ago
7

darryl wants to be sure that each child gets 2 party favors . the party favors cast $3 each and there are 11 children coming . h

ow many party favors will darryl need ?
Mathematics
2 answers:
Tresset [83]3 years ago
5 0
22 is a for sure answer
Bas_tet [7]3 years ago
3 0
Daryl will need 22 party favors
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Find the values of x and y
zhuklara [117]

You can use a tangent:

tangent=\dfrac{opposite}{adjacent}

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\tan30^o=\dfrac{\sqrt3}{3}

substitute:

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Use the Pythagorean theorem:

y^2=(17\sqrt3)^2+17^2\\\\y^2=289(\sqrt3)^2+289\\\\y^2=289\cdot3+289\\\\y^2=867+289\\\\y^2=1156\to y=\sqrt{1156}\\\\y=34

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Other method.

30^o-60^o-90^o triangle.

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Therefore

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