Answer:
-8.5 is a rational number
Step-by-step explanation:
The whole numbers are all the numbers you can reach if you start at 1 (or 0, if that's your thing) and count forward - 1, 2, 3, 4, on and on forever. The integers are all the numbers we can get by adding and subtracting two whole numbers - this includes situations like 3 - 4, where we're "taking away" more than we have: we simply invent numbers less than zero, the negatives, and that gives 3 - 4 a value - the number -1.
So we can add, subtract and multiply any of these numbers together and we end up somewhere else our world of integers, but the moment we want to ask a question like "what numbers are between 0 and 1?" the integers just aren't enough. We need fractions, and for that purpose we create the rational numbers, which include all the fractional parts between integers, as well as the integers themselves.
-8.5 is halfway between the integers -8 and -9, and since it has a fractional part, it must be a rational number.
Step-by-step explanation:
x + y = 985
2.95x + 9.95y = 7343.75
-2.95x - 2.95y = -2905.75
7y = 4438
y= 634 steak sandwiches
x + 634 = 985
x = 351 hot dogs
Answer: ![Range:\{0,2,6,7\}](https://tex.z-dn.net/?f=Range%3A%5C%7B0%2C2%2C6%2C7%5C%7D)
Step-by-step explanation:
By definition:
1) The Domain is the the set of all the input values, which are the x-coordinate of each ordered pair (the first number in each pair).
2)the Range is the set of all output values, which are the y-coordinate of each ordered pair (the second number in each pair).
In this case you have the following relation "G":
![G=\{(-1,7),(8,2),(0,0),(6,6)\}](https://tex.z-dn.net/?f=G%3D%5C%7B%28-1%2C7%29%2C%288%2C2%29%2C%280%2C0%29%2C%286%2C6%29%5C%7D)
Based on the definition shown before, you can conclude that the Domain of G is:
![Domain: \{-1,0,6,8\}](https://tex.z-dn.net/?f=Domain%3A%20%5C%7B-1%2C0%2C6%2C8%5C%7D)
And the Range of G is the following:
![Range:\{0,2,6,7\}](https://tex.z-dn.net/?f=Range%3A%5C%7B0%2C2%2C6%2C7%5C%7D)
Answer:
$1.50 per pound
Step-by-step explanation:
$6 for 4 lb
$6 / 4
since wanting to figure out how much 1 lb cost then divide the total by 4 since $6 is 4 lb
6 / 4 = 1.5
hope this helps
6(8+3x) is 48+18x factorised