Answer:
–21.87 ÷ 4.79
≈ -20 ÷ 5
≈ -4
Step-by-step explanation:
front end estimation means to round off to the most left digit.
eg 12 ≈ 10
Answer by JKismyhusbandbae: 
or 
Explanation: Simplify the expression. Find the equivalent.
Work: (Work linked in picture)
Answer:
There are infinite answers
Step-by-step explanation:
Step 1: Simplify both sides of the equation.
−x+5(x+6)=4x+30
−x+(5)(x)+(5)(6)=4x+30(Distribute)
−x+5x+30=4x+30
(−x+5x)+(30)=4x+30(Combine Like Terms)
4x+30=4x+30
4x+30=4x+30
Step 2: Subtract 4x from both sides.
4x+30−4x=4x+30−4x
30=30
Step 3: Subtract 30 from both sides.
30−30=30−30
0=0
Sarah's error is she multiplied -x times 5x but not 6
There are infinite amount of answers
Perimeter is 70
area is 229
Answer:
x=0 or x=6
Step-by-step explanation:
-4|-2x+6| = -24
|-2x+6| = 6
-2x+6 = 6
-2x = 0
x = 0
-2x+6 = -6
-2x = -12
x = 6
Therefore, x=0 or x=6
