First, you combine like terms (7 and 1) so that is 8. then you are done with the answer of 8-5x
We use the Pythagorean theorem here, because we have the two sides and a right angle between them, so we calculate the hypotenuse like this:
x^2 = 6^2 + 8^2
x^2 = 36 + 64
x^2 = 100
x = square root of 100
x = 10
The correct answer is B.10.
Answer:
c
Step-by-step explanation:
1 hour in heavy traffic = 40 miles
3 hours in light traffic = 50*3 = 150 miles
150+40 = 190 miles travelled
Answer:
x=-2
Step-by-step explanation:
Since x is on the right side of the equation, switch the sides so it is on the left side of the equation.
3
x
+
2
(
2
x
−
1
)
=
2
(
x
−
6
)
Simplify the left side.
7
x
−
2
=
2
(
x
−
6
)
Simplify
2
(
x
−
6
)
.
7
x
−
2
=
2
x
−
12
Move all terms containing x to the left side of the equation.
5
x
−
2
=
−
12
Move all terms not containing x to the right side of the equation.
5
x
=
−
10
Divide each term by 5 and simplify.
x
=
−
2
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