the square of a negative number always be positive
eg: -2² = -2×-2 = (-×- = +) +4
the cube of a negative number always be positive
eg: -2³ = -2×-2×-2 = (-×-×- = +) -8
hope it helps...!!!
Answer:
(A) $14.30
(B) $14.13
Step-by-step explanation:
Let x represent cost of each ribeye steak dinner and y represent cost of each grilled salmon dinner.
(B) We have been given that a waitress sold 16 ribeye steak dinners and 26 grilled salmondinners, totaling $596.12 on a particular day. We can represent this information in an equation as:
We are also told that another day she sold 28 ribeye steak dinners and 13 grilled salmon dinners, totaling $584.01. We can represent this information in an equation as:
Now, we will use substitution method to solve our system of linear equations. From equation (1), we will get:
Upon substituting this value in equation (2), we will get:
Therefore, cost of each grilled salmon dinner is $14.13.
(A) To find the cost of each ribeye dinner, we will substitute in equation .
Therefore, the cost of ribeye steak dinners is $14.30.
Answer:
Step-by-step explanation:
3x-7 ≤ 14
3x≤ 14+7
3x≤ 21
x≤ 21/3 = 7
=> x = (-∞;7]
That means that x can be any negative number and any positivi number (1,2,3...7)
Answer:
62$
Step-by-step explanation:
FORGET THEM IM SAVING MY MONEY
The answer is 12/12/4 total length or if you turn it into a mixed number it will be 3/0/4 witch is 3 whole. hoped this helped you :)