Question

What are the dimensions if the poster is enlarged by a factor of five over two ?

7.5 ft by 30 ft
15 ft by 60 ft
1.5 ft by 6 ft
15 ft by 6 ft

Answer 1

the awnser is A 7.5 ft by 30ft

Explanation:

5/2 of 3 is 7.5 since 5/2 as a decimal is 2.5 so do 2.5 x 3

then 5/2 of 12 would be 30 since again 5/2 as a decimal would be 2.5 so 2.5 x 12

Answer 2

7.5 x 30, 5/2 x 3 is 7.5, and 5/2 times 12 is 30