If you plug in the x and y of choice b you would see that it does not equal 18.
6(3) + 3(-1) = 18
18 + (-3) = 15
Answer:
Step-by-step explanation:
Let's tackle each statement at a time:
<em>Jamal filled his gas tank of which he used 
.</em>
We need to express the unit (a gas tank) in terms of fractions so that we can substract 
.
The denominator of the second term of our substraction is 
, so we can express the first term as 
. Now that we have the same denominator in both terms, we can proceed to define as a common denominator and rewrite the expression as: 
, which gives us a result of 
, which is what Jamal has left after visiting his grandfather. This expression cannot be simplified anymore.
<em>Then, he used 
of the remaining .</em>
We express it as if he had 
of the remaining <em>.</em>:
We multiply the terms:
And simplify:
So, at the end, Jamal has of his tank left.
Answer:
If the interior angle of a regular polygon is 160 degrees, then the exterior angle is 20 degrees. The sum of all exterior angles is 360 degrees so there must be 360/20 sides = 18 sides.
An 18 sided polygon is known as an octadecagon.
Answer:
12
Step-by-step explanation:
EZ!
