Answer:
Domain: x is all real numbers
Range: y is less than or equal to 5
Answer:
The Area of the required figure is 
Step-by-step explanation:
Best Regards!
There are two equation:
1) From Kim
2) From Daniel
Let:
x be the cost of rolls of plain wrapping paper
y be the cost of rolls of shiny wrapping paper
Kim:
7x + 8y = 140
Daniel:
14x + 7y = 154
<u>Using elimination method:</u>
(7x + 8y = 140) * -2 (Multiplying the equation by -2)
-14x - 16y = -280
-14x -16y = -280
14x + 7y = 154
------------------------------
0x - 9y = -126
9y = 126 (Negative sign cancels from both sides)
y = 126 /9
y = 14
The cost of each shiny wrapping paper is $14.
Now solve x, you pick any two equation to solve for x.
7x + 8y = 140
7x + 8(14) = 140 (You know from above y =14)
7x + 112 = 140
7x = 28
x = 28/7
x = 4
The cost of each plain wrapping paper is $4.
Solution: (4,14)
Answer:
3 or 4 bags
Step-by-step explanation:
There are 4 people carrying the 14 bags.
14/4 = 3.5
You can't carry half a bag, due to logical constraints. Therefore, 2 people will carry 3 bags, and 2 people will carry 4.
1.45 x 10^-7 isn't in scientific notation because if it's negative, the decimal starts before the first real number, right?
