Answer:
Step 1: Simplify both sides of the equation.
−
(
n
+
5
)
=
−
(
n
−
6
)
−
11
−
n
+
−
5
=
−
n
+
6
+
−
11
(Distribute)
−
n
−
5
=
(
−
n
)
+
(
6
+
−
11
)
(Combine Like Terms)
−
n
−
5
=
−
n
+
−
5
−
n
−
5
=
−
n
−
5
Step 2: Add n to both sides.
−
n
−
5
+
n
=
−
n
−
5
+
n
−
5
=
−
5
Step 3: Add 5 to both sides.
−
5
+
5
=
−
5
+
5
0
=
0
All Real Numbers are Solutions
I think the answer is about 79, I could be wrong but I think it’s correct
So she walked during this time with <span>4 miles per hour (x*4)
during
the rest of the way (which is 0.7-x, as the whole way took her 42
minutes, so the rest is 0.7-x) she walked with 5 miles per hour - the
distance was (0..7-x)*5 m/h
the total distance was 3 miles, so if we sum the two distances, we will get 3 miles:
x*4+ (0.7-x)*5=3
let's remove the bracket:
4x+0.7*5-5x=3
</span>
<span>4x+3.5-5x=3
subtract 3.5 from both sides:
4x-5x=3-3.5
-x=-0.5
multiply both sides by (-1)
x=0.5:
so she walked for half an hour alone, that is for 30 minutes!</span>
Answer:
<h3>D</h3>
Step-by-step explanation:
Answer:
<h2>-x²+4x +6</h2>
Step-by-step explanation:
Given f(x)=4x+1 and g(x)=x²-5
(f-g)(x) is derived by taking the difference of both functions
(f-g)(x) = f(x)-g(x)
(f-g)(x) = 4x+1 - (x²-5)
(f-g)(x) = 4x+1-x²+5
(f-g)(x) = -x²+4x +6
This gives the requires expression
