Answer:
the third one 10 cm, 9cm 9cm
Answer:
100 students selected randomly as their enter your middle school in the morning
Step-by-step explanation:
Answer:
Step-by-step explanation:
15y+12x = 18 is equivalent to 5y+4x = 6
2x+3y = 12 is equivalent to -6y = 4x-24
one solution: (x,y) = (-21,18)
Answer:
P = 16x + 8
Step-by-step explanation:
Perimeter of a rectangle
= 2(L + W)
Given
L = 5x + 4 and
W = 3x
Therefore
Perimeter = 2(5x + 4 + 3x)
Rearrange the expression
P = 2(5x + 3x + 4)
P = 2(8x + 4)
Now expand the bracket
P = 2 x 8x + 2 x 4
P = 16x + 8
To get 7 from 3 is to add 4
to get 11 from 7 is to add 4, etc.
so 5 -> 9 because 5+4
answer is D
