Answer:
B
Step-by-step explanation:
x-5+3x-5+90=180 you set it up this way because you need to find what x is equal to and by adding those two equations plus 90 then setting the against 180 you can find x because all three angles in a triagnle add up to 180.
x-5+3x-5+90=180
4x-10+90=180 you combined like numbers
4x+80=180 combined like numbers
-80 -80 subtract 80 from both sides because you are trying to--- get x alone
4x=100 now to get x alone you have to divide 4 from both ---- sides
/4 /4
x=25 answer
Easy write as a mixed number, improper fraction, then decimal.
Answer:
linear = 3x+y = 12, y = x/2 -3, y=x
nonlinear y = 6/x -2, y=3x³+5
Answer:
13
Step-by-step explanation:
Opening the brackets, we have
5x – 5 = 20x –200
Collecting like terms, we have:
5x – 20x = –200 + 5
– 15x = –195
Dividing both sides by the coefficient of "x"
–15x/–15 = –195/–15
x = 13
Answer:
165
Step-by-step explanation:
5% of 150 british pounds = 7.5 British pounds
2 years = 7.5 BS per year
7.5 + 7.5
= 15 british pounds
15 british pounds + 150 british pounds =
165 british pounds
