X+y=27
x=2y
2y+y=27
y=9
x=27-y
x=27-9=18
X=2 shown in the work below.
Answer: $91.40
Explanation
137.10/3=45.7
45.7x2=91.4
Answer:
car b
Step-by-step explanation:
car a = 170/4=42.5 mph
car b = 306/4=76.5 mph
If patio is square it means that area of if is

where a is one side
Now we can substitute A=200 and solve eq

a=

a=14.1421
Now we are rounding to the nearest tenths
a=14.1 because next number is 4 and is less then 5.
The result is 14.1