Answer:
Liz's age is 10, Jack's age is 4.
Answer:
16199.999999995
Step-by-step explanation:
Width = x
length = x+10
Area of deck = 144 square feet
Area = length * width
144 = x(x+10)
Solving for x in a quadratic:
x²+10x = 144
x²+10x-144 = 0
Factor:
(x+18)(x-8) = 0
Solving for x:
x = 8, x = -18
Dimensions cannot be negative, therefore x = 8, only.
Length = x + 10
Length = 18
Width = 8
The two equations that are equivalent to given equation 6x + 2y = 8 are 3x + y = 4 and 12x + 4y = 16
<em><u>
Solution:</u></em>
Given that we have to write two equations in standard form that is equivalent to 6x + 2y = 8
The standard form of an equation is Ax + By = C. In this kind of equation, x and y are variables and A, B, and C are integers
<em><u>Given equation is:</u></em>
6x + 2y = 8
Taking 2 as common term,
2(3x + y) = 8
3x + y = 4
Thus the above equation 3x + y = 4 is equivalent to given equation
Any equation that is a multiple of given equation 6x + 2y = 8 would be equivalent.
Multiply 6x + 2y = 8 by 2
[ note that you can multiply by any term like 0.5, 3, 3.5 and so on. Here we choose 2 to multiply ]
2(6x + 2y = 8) ⇒ 12x + 4y = 16
Thus the two equations that are equivalent to given equation are 3x + y = 4 and 12x + 4y = 16
You have to find the mean median and mode with the three day period and the four day period and compare them.
I believe that unless I did something wrong, the answer is B!
Hope this helps,
CK :)