Answer: (3.5,-2)
Step-by-step explanation:
To solve this problem, all we have to do is plug in y=-2 into either equations from step one to find the coordinate. To make sure we have the right x-coordinate, let's plug in y for both equations.
4x-7y=28 [plug in y=-2]
4x-7(-2)=28 [multiply]
4x+14=28 [subtract both sides by 14]
4x=14 [divide both sides by 4]
x=3.5
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6x-5y=31 [plug in y=-2]
6x-5(-2)=31 [multiply]
6x+10=31 [subtract both sides by 10]
6x=21 [divide both sides by 6]
x=3.5
Now, we know the solution to the system is (3.5,-2).
300,000 because the 5 in the ten thousands place is 5 or more (5) so you add 1 to the number before it (3)
Answer:
5 Pounds of peaches
Step-by-step explanation:
Okay so your first step will be to divide 8.75 by 1.75.
That gives you 5, so she bought 5 pounds
Answer:
Step-by-step explanation:
1) -2x + 14 > 16
-2x > 16-14
-2x > 2
x > -1
2) 3x - 7 < 20
3x < 20+7
3x < 27
x < 9
3) 5x + 2 ≥ 12
5x ≥ 12 - 2
5x ≥ 10
x ≥ 2
4) -x + 3 ≤ 5
-x ≤ 5 -3
-x ≤ 2
x ≤ -2