asked 247 views
4 votes
A rectangle with dimensions of 3 units by 5 units is enlarged by a scale factor of 1.4 By what percent does its area increase?

asked
User Rikkatti
by
7.1k points

2 Answers

5 votes

Answer:

128.(6)%

i think this is the ans

answered
User HaNdTriX
by
8.2k points
3 votes

A_1=3*5=15\\ 3.5*1.4=4.9\\ 5*1.4=7\\ A_2=4.9*7=34.3\\ (34.3)/(15)*100\%=228.(6)\%\\ 228.(6)\%-100\%=128.(6)\%
answered
User Bviktor
by
7.6k points

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