Answer:
S = 350+70W
S =1470
Step-by-step explanation:
He starts with 350, that is the initial amount
Each week he adds 70, that means it gets multiplied by the number of weeks,W
The total amount S = the initial amount plus the weekly addition times the number of weeks
S = 350+70W
Let W =16
S = 350+70*16
S = 350+1120
S =1470
The solution to this problem is 0.77. You can find this answer through a math trick that always works. You should subtract the smaller absolute value from the larger absolute value of each number, and then reverse the operation if the larger absolute value is not the one you are subtracting from. In this case, I subtracted .14 from .91, and then made it negative because .91 was had the greater absolute value.
There are three terms in this polynomial, making it a trinomial. The terms are "abcd", "e", and "h^2".
Answer:
that puts the solution in the form ...
variable is ...
Step-by-step explanation:
It isn't always.
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Often, we like to have a solution be in the form ...
variable is ...
So, for an inequality, that puts the variable on the left:
x > 3
y < 27
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Personally, I like to see the answer in a form that has the variable and its values in the same relation as on a number line. This means, my preferred inequality symbols are < or ≤, since those have the smaller numbers on the left. I would write the first example above as ...
3 < x
showing that the shaded portion of the number line (representing possible values of the variable) is to the right of the open circle at 3. For me, it is more mental effort to translate x > 3 to the same image.
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The forms we choose to use are all about making communication as easy as possible.
The amount of books Matt had at the beginning (5) is a constant that does not change, thus nothing will be multiplied by that number. This eliminates options A and C, which both demonstrate 5 as being multiplied by the amount, x, of weeks.
As for the other two equations, which one makes sense for this problem, which models an increase of books over time? The equation with addition.
Answer:
<span>D. y = 5 + x
This problem shows the amount of library books Matt will have after any random amount of weeks he checked out one book, combined with the 5 he had before starting this pattern.</span>
