suppose 4:4:7 be 4x, 4x, 7x
or, 15x = 180°
or, X = 180/15
or, X = 12
therefore,
4x = 4x12= 48
4x= 4x12= 48
7x= 7x12= 84
so if you plus all of them you get 180
Answer:
Let the distance of school and house is x k m
Then time taken at speed 2.5 km\hr=
2.5
x
hr
And time taken at speed 4 km\hr=
4
x
hr
∴
2.5
x
−
4
x
=
60
12
⇒
10
4x−2.5x
=
5
1
⇒x=3 km
Then the distance of school and house is 3 k m
may this help you
The answer is 42.80 , 2.28 is what they saved and i got the .80 cents because i rounded up from .78
Answer:
All of the following proportions are equivalent except a/d=c/b.
a/b=c/d
b/a=d/c => a/b = c/d
a/d=c/b not equal to a/b = c/d
a/c=b/d => a/b = c/d
Step-by-step explanation:
