X+y=11
22x+15y=228
y=11-x
22x+15y=228
22x+15(11-x)=228
22x+165-15x=228
7x+165=228
7x=63
x=9
9+y=11
y=2
The solution to the system of equations is (9,2)
Answer:
First find what the sale price of the CD is. 30% off means the CD is selling for 70% of the original cost ( 100%-30% = 70%)
Multiply the original cost by 70%:
17.00 x 0.70 = $11.90 ( sale price)
Now you need to multiply the sale price by the tax percentage to find the amount of tax:
11.90 x 0.08 = 0.95 ( tax)
Now add the sale price and the tax for the total cost:
11.90 + 0.95 = $12.85
Supplementary is when it is a straight line that is equal to 180 degrees and complementary is a right angle which is 90 degrees
Answer:
its 13
Step-by-step explanation:
Answer:
x=-72
Step-by-step explanation:
-x/6-1=-13
add 1 to both sides
-x/6=-12
multiply 6*-12
-72
x=-72 because -72/6=-12
