18 is 40% of : 45
explanation
18/x = 40/100
Those are going to change to positive values due to the property being used
the order would be
18 , 18 , 19 , 20 , 22 , 30
<h3>
<u>Explanation</u></h3>


- Solve the equation for x-term by making x as the subject.

- Answer Check by substituting the value of x in the equation.

The equation is true for x = 1/2.
<h3>
<u>Answer</u></h3>
<u>
</u>
Answer:
y=-5
x=2
Step-by-step explanation:
3x + 3y=-9
3x - 3y=21
-
0+6y=-30
6y=-30
y=-5
3x-15=-9
x=2
Answer:
600
Step-by-step explanation:
3 x 10 = 30
2 x 10 = 20
30 x 20 = 600