Answer:
when (-1, -4) is substituted into the first equation it's true
when (-1, -4) is substituted into the second equation it's true
the ordered pair (-1, -4) is a solution to the systems of equation
Step-by-step explanation:
original equation
x-y=3
multiply both sides by 7
7x-7y = 21
add 7y to both sides
7x=7y + 21
substitute into second equation
(7y+21)-y=-3
simplify
6y+21=-3
subtract 21 from both sides
6y=-24
y=-4
substitute y into original equation
x-(-4) = 3
cancel out negative signs
x+4=3
subtract -4 from both sides
x=-1
2/25
To find percent divide 2 by 25
2 ÷ 25 = 0.08
Multiply 0.08 by 100 because percent is always out of 100
0.08 x 100 = 8 .
The answer is 8%
Answer:
6 ft
Step-by-step explanation:
10ft + 2ft = 12ft
12ft - 6ft = 6ft
She flies an additional 2ft so you add to 10ft which becomes 12ft. She goes down 6ft so you subtract from 12ft and get 6ft.
Answer:
Step-by-step explanation:
-1/4 - (-3/5) =
-1/4 + 3/5 =
-5/20 + 12/20 =
7/20 <==
An arrow to the left and a closed circle on -4 is:
x≤-4 or if you prefer:
x=(-oo,-4]
