Slimination
the teacher probably wants you to eliminate the x terms since there are an equal number of them
so multiply first equation by -1
-6x+3y=-30
add to second equation
6x-6x+3y+y=18-30
0x+4y=-12
4y=-12
divide by 4
y=-3
subsitute
6x+-3=18
add 3
6x=21
divide both sides by 6
x=21/6=7/2
x=7/2
y=-3
Answer:
X- 12 months, Y- 450 in total
Step-by-step explanation:
unsure what you would want for the answer to be but,
if plan a were to charge you for a year 20 x 12 would be 240 dollars a year + 10 would be 250 the total cost.
plan b, same thing 15 x 12 is 180 + 20 which would be 200 the total cost.
if you wanted both months added together, it would be 420 since x was 12.
and both sign up fees would be 30 dollars, if they needed a sign up fee for each month as well, it would be 360 per.
the total cost for all of plan a and b together would be 450 because you added the 30 dollar fee to the total of each plan.
P.S.- sorry if its long
Answer:
She needs to find out what the benefit would be if she pays it off before the 2 years is up.
Step-by-step explanation:
Answer:-0.00714
Step-by-step explanation: STEP
1
:
1
Simplify —
5
Equation at the end of step
1
:
1
0 - — ÷ 7 ÷ 4
5
STEP
2
:
1
Divide — by 7
5
Equation at the end of step
2
:
1
0 - —— ÷ 4
35
STEP
3
:
1
Divide —— by 4
35
Equation at the end of step
3
:
1
0 - ———
140
STEP
4
:
Final result :
-1
——— = -0.00714
140
Answer:
lol I'm not good at those
