Answer:
A)$ 45
B) $105
Step-by-step explanation:
Bag and a belt cost $255
Let bag = x
Let belt = y
X+y= 255 equation 1
Let total money be z first
Remaining money= z-255
X-30 = z-255
Y +15 = z-255
Equating the left side of the equation
X+30 = y+15
X-y= 45 equation 2
Solving simultaneously
X+y= 255
X-y= 45
2x = 300
X= 150
If x= 150
150-y= 45
150-45= y
105=y
Bag = $150
Belt = $105
Bag Is 150-105 more than the belt
150-105= $45
The correct solution to the limits of x in the tiles can be seen below.
- = -31
<h3>What are the corresponding limits of x?</h3>
The limits of x approaching a given number of a quadratic equation can be determined by knowing the value of x at that given number and substituting the value of x into the quadratic equation.
From the given diagram, we have:
1.
So, x - 9 is positive when x → 9⁺. Therefore, |x -9) = x - 9
Simplifying the quadratic equation, we have:
Replacing the value of x = 9
2.
- -x²-63x+568 is positive when x → 8⁻.
Thus |-x²-63x+568| = -x²-63x+568
3.
- x -7 is positive, therefore |x-7| = x - 7
= -31
4.
- x-6 is negative when x → 6⁻. Therefore, |x-6| = -x + 6
Learn more about calculating the limits of x here:
brainly.com/question/1444047
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Answer:
48 ounces of graphene covers 448 acres.
Step-by-step explanation:
One ounce of graphene cover football fields = 7
Area of 1 football field =
Area of 7 football fields =
So, 1 ounce of graphene cover acres of field =
48 ounces of graphene cover acres of field =
Hence 48 ounces of graphene covers 448 acres.