Answer:
the corresponding length can be derived from the actual length by dividing the actual length by 15.
Corresponding length = actual length ÷ 15
x1 = 1/15 × x = x/15
y1 = 1/15 × y = y/15
z1 = 1/15 × z = z/15
Step-by-step explanation:
Let x,y,z represent the actual dimensions of his room.
And x1,y1,z1 represent the corresponding dimensions of his room used in the scale drawing.
Given;
Scale = 1:15
In a scale drawing, the corresponding dimensions uses for the drawing can be derived by multiplying the actual dimensions by the ratio.
Ratio = 1/15
Corresponding dimension = 1/15 × actual dimensions
x1 = 1/15 × x = x/15
y1 = 1/15 × y = y/15
z1 = 1/15 × z = z/15
Therefore the corresponding length can be derived from the actual length by dividing the actual length by 15.
Corresponding length = actual length ÷ 15
Nr of chocolates = c
nr of bags of 5 = a
nr of bags of 7 = b
50<c<70
c=5*a+2
c= 7*b-1 therefore b can be max 10 (if b=11 then c=76>70 can't do)
let's say b=10 then c=69 but in this case a=13.4 not integer (also can't do)
let's say b=9 then c=62 then a = 12 wich is ok
solution 1 c=62
let's also try for b=8 wich means c=55 and a=10.6, not integer, not ok again
and also for b=7 wich means c=48 but 48<50 so no go again and also for b<7 wich means c will grow smaller and smaller
so the only solution is c=62
Answer: Its b i got this correct
Step-by-step explanation: