B.
It says x = y + 3. So what they did was put y + 3 in the place of x.
Length (L): L
width (w): (2/3)L
Perimeter (P) = 2L + 2w
390 = 2(L) + 2(2/3)(L)
1170 = 6L + 4L
1170 = 10L
117 = L
width (w): (2/3)L = (2/3)(117) = 2(39) = 78
Answer: width = 78 ft, length = 117 ft
Answer:
1,113.87
Step-by-step explanation: Ps it was a joke man
Answer: 6
Step-by-step explanation:
3/1=3
2/4=0.5
3/0.5=6
T=21+4.5X
21 is the original temp.
4.5 is the constant rate I got when I subtracted 75-21=54 then divided 54/12min=4.5.
75 =21 + 4.5(12)
