Solve the system of equations 3x-y=-27 and 4x+2y=-6 by combining the equations

(-6, 9) is the solution set for given system.

Step-by-step explanation:

Given that:

3x-y=-27 eq1

4x+2y=-6 eq2

Solving by combining the equations:

Dividing eq2 by 2 we get:

2x + y = -3 eq3

Now add eq1 and eq3, we get:

5x = -30      (y from both equations will be cancelled out)

Dividing both sides by 5:

x = -6

Now putting value of x back in eq3:

2(-6) + y = -3

-12 + y = -3

Adding 12 on both sides:

y = -3 + 12

y = 9

So the solution set for given system is (-6, 9)

i hope it will help you!

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.