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kherson [118]
1 year ago
13

PLEASE HELP GIVING BRAINLIST!!! Given ΔXYZ is isosceles, what is XZ if the perimeter is 107 units and XZ = 1/2 XY?

Mathematics
1 answer:
Tema [17]1 year ago
6 0
  • XY+YZ+XZ=107

XY and YZ be x

  • x+x+1/2x=107
  • 2x+1/2x=107
  • 4x+x/2=107
  • 5x/2=107
  • 5x=214
  • x=42.8units
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Answer:

1 mile is mapped to 0.3428 inches i.e. unit rate is 0.3428 inches/mile.

Step-by-step explanation:

Given that the scale of the map is \frac{3}{10} inches = \frac{7}{8} miles ....... (1)

Now, we have to convert this map scale to a unit rate.

And the unit rate is the number of inches per mile.  

As the scale is constant, therefore from the the relation (1) we get  

1 mile = \frac{3 \times 8}{10 \times 7} = 0.3428 inches.

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