The design of a mocrochip has the scale 40:1 the length of the design is 18cm find the actual I ength of the microchip
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Answered by
9
Scale = 40:1
=> design length : actual length = 40:1
given that length of design = 18 cm
design length : actual length = 40:1
=> 18cm : actual length = 40:1
=> 18 cm / actual length = 40 / 1
=> actual length = 18cm × 1/40
=> actual length = 9/20 cm
=> actual length = 0.45 cm
=> design length : actual length = 40:1
given that length of design = 18 cm
design length : actual length = 40:1
=> 18cm : actual length = 40:1
=> 18 cm / actual length = 40 / 1
=> actual length = 18cm × 1/40
=> actual length = 9/20 cm
=> actual length = 0.45 cm
Answered by
3
here is your answer OK
real Length of the microchip be x
the proportion is
40 : 1 : : 18 : x
so...........
18 = 40 × x
x = 18/40 = 9/20
so real length of microchip is 9/20cm
so answer will be 0.45 OK
real Length of the microchip be x
the proportion is
40 : 1 : : 18 : x
so...........
18 = 40 × x
x = 18/40 = 9/20
so real length of microchip is 9/20cm
so answer will be 0.45 OK
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