Answer:
x=4, y=-11. (4, -11).
Step-by-step explanation:
3x+2y=-10
5x+y=9
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3x+2y=-10
-2(5x+y)=-2(9)
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3x+2y=-10
-10x-2y=-18
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-7x=-28
7x=28
x=28/7=4
5(4)+y=9
20+y=9
y=9-20=-11
3/4a>-16
Multiply by the reciprocal of 3/4 on each side to get only a on one side of inequality.
a> -16 x (4/3)
That can be simplified to:
a > -64/3
a > -21 1/3
Hope this helps :)
Answer:
$1.25 per cup
Step-by-step explanation:
To work this out you would simply divide the price of $5 by the quantity of 4, which gives you 1.25. This is because the price of 4 has been given, and so to find the price of one you would divide the price by the quantity.
The price per unit is 
1) Divide 5 by 4.
Double checking:
To double check your answer you would multiply 1.25 by 4. And if the answer is 5 then you know that your price per unit is correct.
1) Multiply 1.25 by 4.
There are 4 quadrants and each quadrant is has a measure of 90° angle.
Because the direction is positive, it means that the arm is going from 1st quadrant to 2nd quadrant.
90° + 90° = 180°
Because there is an additional rotation of 25°, the arm is now in the 3rd quadrant.
180° + 25° = 205°
The measure of the angle is 205°
