Answer:
x = -13, y = -3
Step-by-step explanation:
let a number = x; the other = y
x = 3y - 4
x + y = -16
Isolate the y in the second equation. Subtract x from both sides
x (-x) + y = -16 (-x)
y = -16 - x
Plug in -16 - x for y
x = 3(-16 - x) - 4
Simplify. Distribute 3 to all terms within the parenthesis
x = -3x - 48 - 4
x = -3x - 52
Isolate the x. Add 3x to both sides
x (+3x) = -3x (+3x) - 52
4x = -52
Divide 4 from both sides
(4x)/4 = (-52)/4
x = -52/4
x = -13
Plug in -13 for x in one of the equations:
x + y = -16
(-13) + y = -16
Isolate the x. Add 13 to both sides
y - 13 (+13) = -16 (+13)
y = -16 + 13
y = -3
Answers: x = -13, y = -3
~
Answer:
1 hundreths is 10 times greater than 1 thousandths.
Step-by-step explanation:
just like 100 is ten times greater than 10.
70% I divided 28/40 and you get 70% after multiplying by 100
Answer:
900°
Step-by-step explanation:
The sum of interior angles of a polygon with 
sides is given by:
Sum = 
Here, <u>the polygon has 7 sides</u>, so 
. Plugging this into the formula gives us:
Sum = 
So the answer is the first choice, 900°.
Answer: Yes, Rita has enough wire to hang the picture frame.
Step-by-step explanation:
Since we have given that Rita hangs a picture frame of width 22 cm on the wall , the distance from the nail to the top edge of the picture frame is 8 cm, and she has 26 cm of wire to hang the picture .
She need wire only to hang the picture frame which 8 cm away from the nail, and she has 26 cm of wire to hang it .
And 26 > 8 i.e. 26 is greater than 8.
So, Rita has enough wire to hang the picture frame .
