Answer:
28
Step-by-step explanation:
27 x 2 = 54
13 x 2 = 26
54 - 26 = 28
4x - 5y = 15
put x=0, 4(0) - 5y = 15
-5y = 15
y = -3
coordinates (0,-3)
put y=0, 4x - 5(0) = 15
x = 15/4
coordinates (15/4,0)
put y=1, 4x - 5(1) =15
4x = 20
x = 5
coordinates (5,1)
Plot the three coordinates to obtain a straight line.
Note: You can also use other points rather from what i mentioned.
Hope it helped!
Answer:
a. what is the perimeter of a square with side length:
3 cm=12cm
7 cm=28
b.90
Answer:
10= 8z+26
Multiply the entire equation by 2