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Gigglygoose4181
10.01.2020 •
Mathematics
Ascale drawing of a building has the scale 0.5in : 6ft. a wall is 30 ft long. how long will the wall be on the drawing?
a. 1.5 in
b. 2.5 in
c. 6 in
d. 360 in
steps pls!
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Ответ:
any distance of 0.5 in on paper, represents 6 ft in reality
for example:
0.5*2= 1(in) represents 6*2=12 (ft)
0.5*4= 2(in) represents 6*4=24 (ft)
0.5*10=5(in) represents 6*10=60 (ft) and so on...
Let the wall be x (in) in the drawing:
0.5 (in) represents 6 (ft),
x (in) represents 30 (ft)
thus x = (0.5*30)/6 = 15/6= 2.5 (in)
2.5 in
Ответ: