the height of the house 15 m high is represented on scale drawing by a line segment measuring 9 cm.the garage is 5 m high. on the drawing,what is the measure of the segment representing the height of the garage?
2007-01-22 21:16:39 · 13 answers · asked by annika178 1 in Science & Mathematics ➔ Mathematics
This is a simple ratio problem
15 meters is represents at 9 cm
So we now need to know what 5 meters will be represented as in cm.
15/9=5/x
cross multiply
15x = 45
divide by 15
x = 3 cm
3 cm is the answer
2007-01-22 21:25:32 · answer #1 · answered by Bill F 6 · 0⤊ 0⤋
This is a problem of ratios and proportions. You need to answer 5 is to x as 15 is to 9. So x = 9 X 5 / 15 = 3
The general form is a : b :: c : d and
a/b = c/d or b = a . d / c (the . represents the multiplication)
2007-01-22 22:18:03 · answer #2 · answered by Swamy 7 · 0⤊ 0⤋
ans: 3cm
see 15 is scaled down to 9. ie. the scaling factor is 9/15 =3/5.
i.e. if you multiply 15 by 3/5 you get 9.
Similarly, you should multiply the garage height by the scaling factor. therefore 5*3/5 = 3cm
2007-01-22 21:30:03 · answer #3 · answered by Girish.J. 2 · 0⤊ 0⤋
the scale of the map is:
1cm=5/3m or 1m=3/5cm
hence the garage is of height 5m which implies that the measure of the segment on the map is 3cm
2007-01-22 21:27:50 · answer #4 · answered by raghuramkasyap c 1 · 0⤊ 0⤋
the scale is 9cm to 15m.
15/5=3, so divide 9 by 3. 9/3=3
the answer is 3cm.
2007-01-22 21:24:50 · answer #5 · answered by blah 3 · 0⤊ 0⤋
15m===>9cm
5m===>x cm
x= 5*9/15= 3 cm
2007-01-22 21:55:57 · answer #6 · answered by santmann2002 7 · 0⤊ 0⤋
5 is one third of 15 so what would 1 third of 9 be ?
2007-01-22 21:25:48 · answer #7 · answered by wyzrdofahs 5 · 0⤊ 0⤋
15 /3 =5m 9cm /3 =3cm
15m=9cm
5m=3cm
2007-01-22 21:23:12 · answer #8 · answered by Nutty Girl 7 · 0⤊ 0⤋
the height of the garage on the drawing would be 3cm
2007-01-23 10:24:12 · answer #9 · answered by die&rob 1 · 0⤊ 0⤋
15 m -> 9cm
5 m -> x?cm
x = (5*9)/15 = 3cm
2007-01-22 21:41:13 · answer #10 · answered by Anonymous · 0⤊ 0⤋