B. Subtract both numbers to find the refund amount
14x-3x= 11x and the 17 stays the same, so the answer is 11x/17 or answer B.
Answer:
First side is: 12cm
Second side is: 36cm
Third side is: 16cm
Step-by-step explanation:
Let x represent the shorter side
Then 3x represents the second side, and
x + 4 represents the third side.
Perimeter of three sides:
P = x + 3x + (x + 4)
Perimeter is 64, so
64 = x + 3x + (x + 4)
64 = 5x + 4
60 = 5x
12 = x
First side is x: 12cm
Second side is 3x: 3(12) = 36cm
Third side is x + 4: 12 + 4 = 16cm
-9,-10,-11,-12 are they
-42:4=10.5 so the avarage is 10.5 which means the numbers are those
