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Katyazamo
14.05.2021 •
Mathematics
A rectangle has length 60 cm and width 40 cm
Not drawn
accurately
40 cm
60 cm
The length decreases by 15%
The width decreases by 10%
Sue says,
"The perimeter decreases by 25% because 15% + 10% is 25%
I
Solved
Show answers
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Ответ:
20x + -10xy
Step-by-step explanation:
10x · 2 ⇒ 20x
10x · -y ⇒ -10xy
Therefore, it is 20x - 10xy.