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1 year ago

9

Identify the percent of change as an increase or decrease. Then find the percent of change. Round to the nearest tenth of a perc

ent, if necessary. 2/5 to 4/5
(please show your work if you can :D)

1 answer:

stealth61 [152]1 year ago

3 0

Answer:

Step-by-step explanation:

Increase

Increase = $\dfrac{4}{5}-\dfrac{2}{5}=\dfrac{2}{5}$

Increase percentage = 2/5 out of 2/5 * 100

$=\dfrac{2}{5}*\dfrac{5}{2}*100$

= 100 %

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Answer:

The area of the rectangle on the left side is

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Step-by-step explanation:

The area of any given rectangle can be found by multiplying the length of that rectangle by its width. The rectangle on the left side has a length of 9cm but the width is unknown. To find the width, we subtract 6cm from the width of the bottom rectangle: 10cm. And that gives us 4cm.

Therefore, we can now calculate the area to be: length × width = 9cm × 4cm = 36cm²//

The area of the bottom rectangle can be found similarly by multiplying the length: 2cm by the width: 6cm of that rectangle. And the result gives us: 2cm × 6cm = 12cm²//

The total area of the composite figure is calculated by adding the results from the left and bottom rectangles together. And that gives us: 36cm² + 12cm² = 48cm²//

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