R = robins cans
s = sara's cans
n = nick's cans
T = total cans
s = 5r
n = 6r
T = 216 = s + r + n
we sub in the first two equations into the first
216 = 5r + 6r + r
216 = 12r
r = 18
sub this back into equations 1 and 2
thus
r = 18
s = 90
n = 108
Answer:
16.8-18.6= -1.8
Step-by-step explanation:
It must be negative
A
the word 'of' means to multiply
0.45 × 80 = 36
Answer:
y=3
Step-by-step explanation:
1 foot is shorter that 20 centimeters
