What grade is this? are these meant to be fractions?
Answer:
31
Step-by-step explanation:
The Range is the difference between the lowest and highest values (3, 34)
Equation 1 ==> y - x = -13
Equation 2 ==> -4x + 3y = -51
3(y - x) = 3(-13)
Equation 3 ==> 3y - 3x = -39
Equation 2 - 3
= (3y - 3y) + ( -4x - (-3x) ) = -51 - (-39)
-x = -12
x = 12
Substitude x into equation 1
y - 12 = -13
y = -1
Answer:
Jill earned $22,500 more total income for the year.
Step-by-step explanation: