Please answer all of the following Understanding ProportionsA proportion is made when youhave two ratios describing thesame objects.For example:Jack drives a large dump truckin Northern Saskatchewan. HisCATtruck is taller than his high schooland can haul up to 360 tonnesof rock. He took a picture of hisdump truck next to his SUV. HisSUV is about 2m tall. How tall isthe dump truck?Solution: The two dimensions that you are comparing are:Height of truck: Height of SUVRemember that we can write a ratio as a fractionheight of truckheight of SUVWe have two different versions of this ratio – one is in the picture, and one is inreal life. We can write these ratios as a proportion:height of truck in picture _ height of truck in"real life"height of SUV in"real life"height of SUV in pictureWe can then put in the numbers that we know and then solve for the unknown.5 ст%D1 ст2 m5 ст(2m)(tem)(2m)(1cm)1em 2m10m X em =X-€m10m = XThe truck is 10m tall. 1.a) List two jobs where scale models are used.b) List two jobs where scale drawings are used.a) List two situations where a diagram or model would need to bereduced.b) List two cases where a diagram or model would need to be enlarged.Alli wants to sew a sari. The diagram below shows a scale drawing of asari. If the width of sari fabric is usually 46 inches, what length of fabricwould Alli need for her sari?1.5 cm7 cm2.3.

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1. a) List two jobs where scale models are used. b) List two jobs where scale drawings are used.

Elements Of Electromagnetics

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ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

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In the mid-20th century, the availability and the growth in power of digital computers led to the increase in the mathematical model in the field of engineering and science. The analysis of these detailed models needs to be increased.

Question

Please answer all of the following

Understanding Proportions
A proportion is made when you
have two ratios describing the
same objects.
For example:
Jack drives a large dump truck
in Northern Saskatchewan. His
CAT
truck is taller than his high school
and can haul up to 360 tonnes
of rock. He took a picture of his
dump truck next to his SUV. His
SUV is about 2m tall. How tall is
the dump truck?
Solution: The two dimensions that you are comparing are:
Height of truck: Height of SUV
Remember that we can write a ratio as a fraction
height of truck
height of SUV
We have two different versions of this ratio – one is in the picture, and one is in
real life. We can write these ratios as a proportion:
height of truck in picture _ height of truck in"real life"
height of SUV in"real life"
height of SUV in picture
We can then put in the numbers that we know and then solve for the unknown.
5 ст
%D
1 ст
2 m
5 ст
(2m)(tem)
(2m)(1cm)
1em 2m
10m X em =X-€m
10m = X
The truck is 10m tall.

1.
a) List two jobs where scale models are used.
b) List two jobs where scale drawings are used.
a) List two situations where a diagram or model would need to be
reduced.
b) List two cases where a diagram or model would need to be enlarged.
Alli wants to sew a sari. The diagram below shows a scale drawing of a
sari. If the width of sari fabric is usually 46 inches, what length of fabric
would Alli need for her sari?
1.5 cm
7 cm
2.
3.

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