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Dominik [7]
3 years ago
8

Sergio bought 1 yard of yellow yarn. He used 21 inches of this yarn for a project. What part of the yarn that he bought did he u

se?
Mathematics
1 answer:
Nezavi [6.7K]3 years ago
8 0
Sergio did not use 15 inches of his yellow yarn
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Find the missing lengths of the sides
Ket [755]

ANSWER

The correct answer is C

EXPLANATION

The given triangle is a right triangle. Since two angles are equal, it is a right isosceles triangle.

This implies that, x=8 units.

Using Pythagoras Theorem,

{y}^{2}  =  {8}^{2}  +  {8}^{2}

This implies that:

{y}^{2}  = 64  +  64

{y}^{2}  =128

Take positive square root,

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The correct answer is C

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3 years ago
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Step-by-step explanation:

i think that this is it

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nlexa [21]
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2 years ago
1. Evan drove 308 km in the same time that Meghan drove 329 km. If Meghan drove
emmainna [20.7K]

Answer:

Her average speed is 94 km/h

Time taken is 3.5 hours

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Let Evan’s average speed be x km/h.

now since Meghan drove faster, according to the question, we can say her average speed would be x + 6 km/h

Mathematically, time = distance/speed

so; since time is the same; we have

308/x = 329/(x + 6)

cross multiply

329(x) = 308(x + 6)

329x = 308x + 1848

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x = 1848/21

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