Hello from MrBillDoesMath!
Answer:
Rule: Y = 5x - 3
Table Line 4: Y (output) = 37
Table Line 5: X (input) = 10
Discussion:
This one had MrBill going for a while! The rule appears to be
Y = 5 * x - 3
Check it out! Substitute some table values (input) and check the (output) values.
Table line 4: Y(8) = 5 * 8 - 3 = 40 - 3 = 37 (Output)
Table line 5: If Y = 47 = 5*x -3 => add 3 to both sides
47 + 3= 5x => as 47 +3 = 50
50 = 5x => divide both sides by 5
x = 50/5 = 10 (input)
Thank you,
MrB
Answer:
y is the dependent variable
Step-by-step explanation:
Firstly, in a linear equation, we have the dependent and the independent variables. The dependent variable is the one whose values are obtained from the independent variable. The independent variable is the variable which we already know its values.
Hence, we say that the independent variable is the variable in which the dependent variable is based.
Now, back to the question, our equation says y = 2x. To get the values of y, we cannot do this without having a prior knowledge of what the values of x are. Hence, we can say that y is a variable which values are dependent on the values of x. We can thus call y the dependent variable and x the independent variable in this question
Answer: 2^16
Step-by-step explanation:
Answer:
width = 7 and length = 9
Step-by-step explanation:
Let's assume width = w, and length = 2 + w
So area of a rectangle = width * length
63 ft² = w (2 + w)
63 = 2w + w²
w² + 2w - 63 = 0
Use the quadratic formula to solve this
here, a = 1, b = 2 and c = -63
w = 7 or -9
The dimensions of a rectangle cannot be negative. So we take the dimension, w = 7.
Width = 7 and Length = 7+2 = 9
