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olga nikolaevna [1]

3 years ago

9

There are 3 star fighters and 10 aliens in the play space trek. Each alien costume takes 2 1/4 yards of material. How much mater

ial is needed for all the alien costumes?

1 answer:

Leno4ka [110]3 years ago

6 0

Answer:

22.5 yards

Step-by-step explanation:

10 costumes at 2.25 yards each is ...

10 · 2.25 = 22.5 . . . . yards of material

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Answer:

38.75 = 2.25 m + 5

Step-by-step explanation:

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3 years ago

If angle I is congruent to angle K find the perimeter of triangle JIK?

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Thus, our goal is to find the value of $x$ and by finding it we will get the perimeter of the triangle. If ∠I = ∠K = β, then according to the Law of Sines we have:

$\frac{9x-11}{sin \beta}= \frac{6x-5}{sin \beta} \\ \\ \therefore 9x-11=6x-5 \\ \therefore 3x=6 \therefore \boxed{x=2}$

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3 years ago

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   8     8
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The answer is D.

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