I would go with B
Because all an inequality is:
you doing the opposite to get the answer.
Answer:
Step-by-step explanation:
Quadrilateral ABCD is inscribed in a circle. So, ABCD is a cyclic Quadrilateral.
Opposite angles of cyclic quadrilateral are supplementary.
Therefore,
opposite sides and diagonals of a parallelogram are equal
+ diagonals of a parallelogram meet eachother in the middle so:
10x+14=x+77
10x-x=77-14
9x=63
x=63÷9
x= 7
y+8=4y-19
y-4y=-19-8
-3y=-27
y=-27÷-3
y=9
2z+3=37
2z=37-3
2z=34
z=34÷2
z=17
Answer:
I think difference between values on y-axis should be same. For eg: 100,200,300,400,500......
First, let x be the amount of 20% acid solution in liters. With this, 60 - x is the amount of 50% solution. The acid balance before and after mixing becomes,
(0.2)(x) + (0.5)(60 - x) = (0.40)(60)
The value of x is 20. Therefore, Gabe needs 20 liters of 20% acid solution and 40 liters of 50% acid solution.