Rich drew a 7 in wide by 4 in tall picture that will be turned into a 40 ft wide billboard. How tall will the billboard be?

21.8 ft
17.9 ft
40.8 ft
22.9 ft

Question

Rich drew a 7 in wide by 4 in tall picture that will be turned into a 40 ft wide billboard.  How tall will the billboard be?

21.8 ft
17.9 ft
40.8 ft
22.9 ft

anonymous · Answer

Full answer= Medal & A Fan !! <33 please help.

anonymous · Answer

so if 7 turns to 40
what happens to the 4 ?

anonymous · Answer

Wait what .

anonymous · Answer

Can you just give me the answer? I dont get at alll how to do this stuff !

anonymous · Answer

so im trying to explain

you see that at the beginning the pictures size was 7 in wide and 4 in tall

now they enlarge the picture so that it became 40 in wide

anonymous · Answer

yea.

anonymous · Answer

so the ratio is 40/7.

so it will be 
4 * (40/7) = 22.9

anonymous · Answer

Can you help me with more problems?

anonymous · Answer

In the gift shop of the military museum, Elliott bought a kit to make a model of a fighter plane. The actual plane is 21 feet long with a wingspan of 17.5 feet. If the model will be 12 inches long, what will the wingspan be?
a.
14.4 inches
c.
30.6 inches
b.
10 inches
d.
5 inches