Answer:
A: y < -2x - 1
Step-by-step explanation:
First, to figure out which part of the graph to be looking at, you will look at the shaded region as the solution area.
So, the solution area is to the left of the line. Said line is a dotted line which means that the points on the line can not be a solution.
If the points on the line can not be a solution then it eliminates answer choices C and D because y can not equal the other side of the inequality.
Now, we will bring the shaded region back into focus to find out if y is greater than or less than the other side. The shaded area is "below" the line so it is less than -2x - 1.
To ensure this is correct, plug two points into the inequality we just chose, one from the shaded region and one not, just to make sure the answer is correct.
I picked (-3,4) to test. So plug them into the inequality to get:
4 < -2 (-3) - 1
So 4 < 6 - 1 which is correct.
Then from the other side of the line I picked (5,2)
2 < -2 (5) - 1
2 < -10 - 1
2 < -11 is not true so the inequality that we found was correct.
Answer:
63m + 57k = 714 ____________ (1)
78m + 57k = 789 ____________(2)
The price of one meal is $5
Step-by-step explanation:
Let the price of one meal be m.
Let the price of one medical kit be k.
One airplane is carrying 63 meals and 57 medical kits and the total cost for those supplies on that airplane is $714.
This means that:
63m + 57k = 714 ____________ (1)
The other airplane is carrying 78 meals and 57 medical kits and the total cost for the supplies on that airplane is $789.
This means that:
78m + 57k = 789 ____________(2)
We now a system containing two linear equations that can be used to solve to problem:
63m + 57k = 714 ____________ (1)
78m + 57k = 789 ____________(2)
To find the price of one meal, we subtract equation (1) from (2) and simplify:
78m + 57k = 789
<u>- 63m + 57k = 714 </u>_
15m = 75
=> m = 75 / 15 = $5
The price of one meal is $5
Answer:
3
Step-by-step explanation:
because if 3 kids are in the front and kids only sad behind those three kids
three kids sat behind them
Answer:
the answer is 4/-1
Step-by-step explanation:
because m= rise/run
Answer:
$4000
Step-by-step explanation:
so $2800 was the starting price
100%-30%=70%
So 2800=70%
2800/7=400
400=10%
400*10=$4000
