Step 1: Line up the equations so that the variables are lined up vertically.
Step 2: Choose the easiest variable to eliminate and multiply both equations by different numbers so that the coefficients of that variable are the same.
Step 3: Subtract the two equations.
Step 4: Solve the one variable system.
Step 5: Put that value back into either equation to find the other equation.
Step 6: Reread the question and plug your answers back in to check.
Answer:
-1.5 per month
Step-by-step explanation:
-3 sales/2 months
Answer:21
Step-by-step explanation:
<u>cu u=-(5-12)=-7 c=-3 -7(-3)=21</u>
Simple interest:
Final value = principle (starting balance) x interest x time in years
Fv = PiN
18,000 x 0.045 x 3 = $2430
2430 + 18000 = $20430
Answer:
90°
Step-by-step explanation:
Actually the question should be AC is tangent to circle B at point C. What is the measure of angle BCA.
AC is tangent and BC is radius.
Radius is perpendicular to the tangent.
Therefore,
measure of angle BCA = 90°
