Answer:
d. 393-159 hope this helps and that is the answer
The answer is 7.68. Since she gave one to her sister, she now has 6 to share with her friends. Now we can conclude the equation to solve this problem would be 6x1.28
First distribute the 3.
3x+9=-6
Then subtract 9 from both sides.
3x=-15
Now divide both sides by 3.
So x=-5
Check: 3(-5+3)=-15+9=-6
It works!
To write the equation of a line I need slope and y intercept (0,y)
I have y intercept (0,7) of +7 as written in the equation
The equation y=-5/4x + 11/4 has a slope of -5/4
To get perpendicular slope is negated reciprocal
so take -5/4 and flip it -4/5 and change the sign (in this case negative to positive) 4/5
so the new equation is y=4/5x +7 (third one)