Answer:
60 cents
Step-by-step explanation:
10x + 5(x+6)
15x = 30
x = 2
plug this back in the equation
20 + (5 x 8) = 60
we have
Using a graph tool
see the attached figure
The solution of the inequality is the shaded area
therefore
the answer is the option B Graph C
Did you notice the little box with corners marked in the angle down at the bottom ?
That angle is a right angle, and <em>this triangle is a right triangle</em> !
This piece of information is a big help. It breaks the problem wide open.
You know that in order to find the longest side of a right triangle . . .
-- Square the length of one short side.
-- Square the length of the other short side.
-- Add the two squares together.
-- Take the square root of the sum.
One short side=48. Its square = 2,304.
The other short side=48. Its square = 2,304.
Add the two squares: 2,304 + 2,304 = 4,608
The square root of the sum = √4,608 = <em><u>67.88</u></em> (rounded)
<span>The commutative and associative properties do not apply to both subtraction and division because once you move around your variables, you will produce different results, whereas in addition and multiplication, any change in position of numbers won't affect the result. The identity properties apply to them because once you add, subtract, multiply, or divide a certain number from any other number, you produce the same result, or, in other words, keep the number's "identity".</span>
Answer:
The piecewise function is:
Step-by-step explanation:
A piecewise function is a function that is defined in multiple intervals.
In the first interval:
The problem states that a taxi company charges $4.00 for the first mile (or part of a mile).
x is the number of miles. So
If 
.
Second interval:
Here, the cost is defined by a linear function in the following format:
In which 
is the initial price and r is the price paid per mile.
The problem states that each succeeding tenth of a mile costs 80 cents. So
we have the following rule of three.
1 mile - r dollars
0.1miles - 0.8 dollars
So, we have
Piecewise function:
The piecewise function is:
