2.5/2 = 1.25 litres per kilo
1.25 * 50 = 62.5 litres
Solution: 62.5 litres of fuel
1) 3cm
2) 30mm
3) 20mm
4) 3cm
5) 3cm
6) 20mm
Perimeter of square = 4s perimiter of pentagon= 5s, i guess? its a regular one afterall 4s = P 4 (10) = p 40 = P (40 = 5s)/ 5 8 = s
Sorry I dont know how to answer the second one...
Use a proportion.
3 + 2 = 5
Let the number of SUVs be x.
SUVs to total = 3:5
SUVs to total = x:95
3/5 = x/95
5x = 3 * 95
x = 3 * 19
x = 57
95 - 57 = 38
57 SUVs and 38 sedans.
Let the medium angle be B degrees
the small angle be A degrees
the large angle be C degrees
Then
C = 2 B + 20 ..................X
5 B = A + C ..................Y
Sum of all angles
A + B + C = 180 .............Z
Applying Y in Z
5 B + B = 180
6 B = 180
B = 30
From X C = 2 x 30 + 20 = 60 + 20 = 80
From Y 5 x 30 = A + 80
150 = A + 80
150 - 80 = A = 70
Hence medium angle B = 30 degrees
the small angle A = 70 degrees
the large angle C = 80 degrees