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ella [17]
3 years ago
14

5. ERROR ANALYSIS Describe and correct the error in finding the sum of the number

Mathematics
1 answer:
Semmy [17]3 years ago
8 0

Answer:

  (25 × 10") + 153 × 10" = (25 +153) × 10" = 178 × 10" = 1780"

Step-by-step explanation:

a) Numbers are miscopied: the numbers in parentheses should be (25 +153). Of course, the sum of these should be 178, not 78.

b) The common factor 10" is somehow expanded to 110' x 10°. It should be 10".

The sum should be ...

  (25 × 10") + 153 × 10" = (25 +153) × 10"

  = 178 × 10" = 1780" . . . . . correct sum

_____

Maybe the middle step is an attempt to convert to feet.

  1780" × (1')/(12") = (148 1/3)' = 148' 4"

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Check all of the ordered pairs that satisfy the equation below.
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Answer:

Hey there!

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The side lenghts of a triangle are 14,15, and x units
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Answer:

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Step-by-step explanation:

The triangle inequality requires the sum of the two shortest sides exceed the longest side.

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<u>When 14 and 15 are the shortest</u>:

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_____

<em>Additional comment</em>

The length of the third side of a triangle can be between the difference and sum of the two given sides.

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