(10x + 4) + (5x-4) ≈ 180
solve for x and you get x≈12
plug 12 in to 5x-4 and you get 56
Answer: Length of fence along the diagonal is 28.3 feet.
Step-by-step explanation:
Since we have given that
The Blackburn family has a square field ,
Area of square = 40000 ft square
As we know the formula,
Area of square = Side x Side
40000 = slide

20 ft = Side
But Blackburn wants to put a fence diagonally through the field ,
As we know the formula for "Diagonal of side" i.e.
Diagonal of square 
Diagonal of square 20
So,
Length of fence along the diagonal = 20 x 1.41 = 28.3
Hence, length of fence along the diagonal is 28.3 feet.
Hope this helps!
Answer: $6.99
Step-by-step explanation: each minute is 20 cents and the connection fee is .99 cents.
30x.20= 6.00
6.00 + .99 = $6.99
Answer:
False
Step-by-step explanation:
Here's a true if-then statement:
if false, then true
Here's the modification proposed:
if not false, then not true . . . . . . . . . this is not a true if-then statement
Answer:
The correct answer is D.) 23 units
Step-by-step explanation:
13 + 10 = 23, units can never be negative, so you add them as positives.
Hope This Helps!