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Simonne predicted that she would sell 99 picture frames. She actually sold 88 picture frames. What are the values of 'a' and 'b'? Round round to the nearest tenth if necessary.

Item-
Picture frames

Approximate value-
99

Exact value-
88

Error-
Blank

Absolute error-
Blank

Ratio-
a

percent error-
b



Possible answers:

1. a= 11/99; b= 11.1%

2. a= 11/88; b= 12.5%

3. a= 88/99; b= 88/99%

4. a= 11/11; b= 100%

Respuesta :

ChoiSungHyun

Step-by-step explanation:

Ratio

= Difference between Prediction and Actual / Prediction

= (99 - 88)/99 = 11/99.

Percentage Error

= Difference between Prediction and Actual * 100%

= (99 - 88) * 100% = 11.1%. (1)

The ratio (a) & percent error (b) will be option A which is a=11/99 and b= 11.11% respectively

Ratio and Percent error

  • Ratio can be defined as difference between approximate value and exact value divided by approximate value.
  • Percent error is ratio multiplied by 100

How to solve this problem?

  • Given

Approximate value = 99 frames

Exact value = 88 frames

  • Ratio (a) = (Approximate value - Exact value) / Approximate value

∴ Ratio (a) = (99-88)/99

∴ a = 11/99

  • Ratio (a) x 100

∴ Percent error (b) = (11/99) x 100

∴ b = 11.11%

So, the answer of ratio (a) & percent error (b) will be 11/99 and 11.11% respectively

Learn more about Ratio and percent error here:

https://brainly.com/question/5493941

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