Answer:
2. 8x
3. (12/2)*(10/2)
Step-by-step explanation:
49.75 - 8 = 41.75. 41.75 / 1.369 = 30.4967129. Let's round it to 2 decimal points, which is 30.5. The maximum number of litres of gasoline that Terri can purchase is 30.5. If m= money, c= price of car wash and g= price of gasoline per litre, the equation is (m - c) / g.
The most efficient way to solve this problem is isolating the y in the first equation because:
6x + 3y = 27
3y = 27 - 6x
y = 9 - 2x
Since all the numbers have a common factor of 3, it can be easily simplified/reduce.
If you used any other variable, you would have gotten a fraction.
Now that you found y, you can substitute it into the other equation to solve for x.
ANYWAYS, your answer is A
Answer:
Step-by-step explanation:
6x10 to the power of 21 the answer is too long for my calculator sadly
Answer to Problem 27 is choice D) (x,y) --> (x+3, y-5)
Answer to Problem 28 is choice A) collinear
------------------------------------------------------------
Explanation for problem 27: Focus on point G. Notice how we shift it 4 units to the right and then 5 units down. So that's why the rule is (x,y) --> (x+3, y-5)
Explanation for problem 28: The term "collinear" means all points fall on the same line. Or put another way, its possible to draw a single straight line through all the points. The term "co" means "share" and "linear" means "line". So "collinear" translates to "sharing the same line". One axiom is that two points are always collinear no matter how you place them. Any more than 2, its not always guaranteed.
