Answer:
42 and 6
Step-by-step explanation:
Answer:
x = -4
Step-by-step explanation:
The solution to a "sum and difference" system of equations can be found by adding the equations together.
(x +y) +(x -y) = (-10) +(2)
2x = -8 . . . . . . simplify
x = -4 . . . . . . . divide by 2
_____
Additional comment
y = -6, though this question did not ask that value.
75/15=5 so the answer would be 5 months
Answer:

Step-by-step explanation:
Given

Required
Write a formula
The above sequence shows a geometric sequence because:
-- common ratio
The equation is determined using:

Where

Substitute values for a and r

Apply law of indices:





<em>The above represents the explicit formula</em>