Answer:
It C
Step-by-step explanation:
1.
The edge lengths of a triangle are inversely proportional to 2,3 and 4.
The actual proportions of the lengths are then
12(1/2:1/3:1/4)=6:4:3
The longest side
= 39* (6/(6+4+3)
= 39*6/13
=18
2. 63 breads : 35 kg flour
is the same as
54 breads : x kg flour
Cross multiply and get
x=54*35/63=30
30 kg of flour are needed to make 54 breads.
Hope this helps!, I have to have more than 20 characters so ignore this!
Answer:
-23
Step-by-step explanation:
-2/3 = -26/39
-1/13= -3/39
-26/39- (-3/39) = -23
