Which ordered pair is the solution to the following system of equations?

y= x - 4
y = -3x

(1,-3)

Step-by-step explanation:

Make the two equations equal to each other:

-3x=x-4

** bc they both are equal to y and they have the same ordered pair that make each of the equations true

Then simplify:

-3x=x-4

-3x-x= x-x -4

-4x=-4

x=1

Now you have x, plug it into either of the equations to get y:

y=x-4

y=1-4

y=-3

So the ordered pair would be: (1,-3)

b

step-by-step explanation:

answer: the value should be used for i in the formula of calculation the monthly payment , the interest rate per period is 0.85.

step-by-step explanation:

the given rate of interest i= 85%

in calculating the monthly payment for a loan with an interest rate compounded monthly, the value of the interest rate per period we use in the formula must be in decimal form.

to convert it in decimal, we divide it by 100, we get

hence, the value should be used for i in the formula of calculation the monthly payment , the interest rate per period is 0.85.