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Step-by-step explanation:

you know how to multiply fractions ?

a/b × c/d = (a×c)/(b×d)

the 2 top parts are multiplied and the 2 bottom parts are multiplied.

the existing answers in "Model" are wrong.

when we multiply the actual size by the scaling factor, we get the model size.

2 1/3 = (6+1)/3 = 7/3

7/3 × 2/5 = 14/15

this is s little bit smaller than 1, and definitely not 1 1/3 (more than 1).

similar with the width.

1 3/7 = (7+3)/7 = 10/7

10/7 × 2/5 = 20/35 = 4/7 (and not 3/4)

so, this is all wrong.

the question is, if maybe the specified scaling factor of 2/5 is wrong.

so, let's see what the scaling factual is for the given model sizes.

7/3 × f = 1 1/3 = (3+1)/3 = 4/3

7f = 4

f = 4/7

now let's try this scaling factor for the width :

10/7 × 4/7 = 40/49

no, this is also not 3/4 (not even close). this is much closer to 4/5.

therefore, I assume now that the actual and scale numbers are correct, and we calculate all the correct model numbers.

so, again

the model length is actually 14/15

the model width is 4/7

the model height is

(8+1)/8 × 2/5 = 9/8 × 2/5 = 18/40 = 9/20

the model door width is

6/7 × 2/5 = 12/35

the model door height is

7/8 × 2/5 = 14/40

and because the scaling factor (2/5) is smaller than 1, actually smaller than 1/2, the model numbers will be smaller then even half the actual numbers. as our results above show.

9) i can't see the angle so whatever it is just do this: cos(angle) x hypotenuse and then use that answer and they hypotenuse and plug it into this: (answer you just got)^2 + b^2 = (hypotenuse)^2. the first answer will be the answer of the adjacent side and the second answer after this equation will be the opposite side.

10) y = 14 x = √147 or 12.12435565

11) x = 4.8

12) x = 4.2

13) x = 9.3

14) pq: 13.2

qr : 17.6

angle p: 53º

15) angle c: 54.3º

angle a: 35.7º

16) h = 21040

v = 1841

step-by-step explanation:

10) 7/sin(30) = 14 = y

7^2 + b^2 = 14^2

49 + b^2 = 196

b^2 = 196 - 49

√b^2 = √147

x = √147

11) cos(70) x 14 = 4.788282007

x = 4.8

12) tan(25) x 9 = 4.196768923

x = 4.2

13) sin(31) x 18 = 9.270685348

x = 9.3

14) pq: sin(37) x 22 = 13.23993051

pq: 13.2

qr: cos(37) x 22 = 17.56998122

qr : 17.6

angle p: 180 - (37 + 90) = 53º

15) cos-1(7/12) = 54.31466529

angle c: 54.3º

angle a: 180 - (90 + 54.31466529) = 35.68533471

angle a: 35.7º

16) 4 x 5280 = 21120

cos(5) x 21120

h = 21039.63202

h = 21040

sin(5) x 21120

v = 1840.729287

v = 1841

answer: 193

explanation:

200-7 = 193