2 answers:
For this case we must find the value of the following expression:
-3 + 9 * 8÷2 =
According to the PEMDAS algebraic order of operations:
P: Perform any calculation within parentheses
E: Simplify any exponential expressions.
MD: Do all the multiplications and divisions, from left to right, as they appear.
AS: Do all the addition and subtraction, from left to right, as they appear.
So:
49-3 + 9 * 8÷2 =
49-3 + 72÷2 =
49-3 + 36 =
46 + 36 =
82
ANswer:
82
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Answer:
.
Step-by-step explanation:
We have been given that 4 days I have 140 copies of a book, 9 days I only have 50 left. We are asked to write an equation , where c is number of copies still on hand and t days being available.
We have two points on line (4,140) and (9,50). Now, we will use these points to find slope as:
Now, we will use point-slope form of equation and substitute
and coordinates of point (9,50) as:
Therefore, our required equation would be .