Answer:
The cost of an oil change for 1 truck was $42
Step-by-step explanation:
Let
x -----> the cost of an oil change for 1 truck
y -----> the cost of gas for 1 truck
z ----> the total bill
we know that
we have
substitute and solve for x
The answer would be C because he did not correct his mistakes that he had made
Answer:
x=9
Step-by-step explanation:
see the attached figure to better understand the problem
we know that
----> by intersecting chords theorem
substitute the given values
solve for x
Answer:
x=-7
Step-by-step explanation:
5(-2x-3)-4x-5=78
-10x-15-4x-5=78
-14x-20=78
<u> +20 +20</u>
<u>-14x</u>=<u>98</u>
-14 -14
x=-7
I got two solutions <span> n = 6<span> and n = -5</span></span>