Manipulate the first equation to
y = 22-7z
Then substitute in the second to find z
8(22-7z) + 7z = 127
176-56z+7z = 127
-49z = -49
z = 1
So y = 22-7(1) = 22-7 = 15
y = 15; z = 1
Let the number of hours she works be x
2x+15 15 more than twice the
3x-15 15 less than 3 times the hours she worked
2x+15=3x-15
3x-2x= 30
x= 30
the number of hours she worked is 30
B. sometimes
sometimes it’s a line and sometimes it’s dashed depending on the less than great than sign
Answer:
They're all 45
Step-by-step explanation:
since the lines are perpendicular all angles are equal
Answer:
That means you rented a boat for $22 and n friends for f dollars
Step-by-step explanation:
