Question

Beni's uncle is building a deck for her house that is proportional to the 20- feet by 30- feet deck he built for his house. The scale factor between his deck and her deck is 0.5. Which of the following could be a measurement for Beni's deck?
a- 15 feet
b- 50 feet
c- 30 feet
d- 20 feet

Answer 1

can you help @goformit100 or @Shayaan_Mustafa

Answer 2

solve this for x :-
20:30::0.5:x

Answer 3

what?

Answer 4

@Shayaan_Mustafa

Answer 5

@Shayaan_Mustafa

Answer 6

Sorry I was busy.

So answer should be 15feet.

Answer 7

How @Shayaan_Mustafa

Answer 8

plz explain

Answer 9

you need two dimensions because the bigger one is 20 by 30. so if the scale factor is .5, then the dimensions have to be halved also... 20*.5 by 30*.5 or 10 by 15