Answer:
x = -5/3
y = 10/3
Step-by-step explanation:
y = x+5
y = -2x
y = x+5
-2x = x + 5
-3x = 5
x = -5/3
y = x+5
y = -5/3 + 5
y = 10/3
If the shorter piece is x feet long, the longer piece is 3x+4 feet long, and the total length is
... x + (3x+4) = 36
... 4x = 32 . . . . . . . . simplify, subtract 4
... x = 8
The shorter piece is 8 feet long; the longer piece is 28 feet long.
_____
You can do the math for the longer piece in your head: 36 ft - 8 ft = 28 ft.
78/6 maybe which equals 13 sorry if its wrong
Answer:
• (6, -7)
• (-4, 13)
Explanation:
• Option One
2x + y = 5
2(6) + (-7) = 5
12 - 7 = 5
5 = 5 {true}
3y = 15 - 6x
3(-7) = 15 - 6(6)
-21 = 15 - 36
-21 = -21 {true}
• Option Two
2x + y = 5
2(2) + 1 = 5
4 + 1 = 5
5 = 5 {true}
3y = 15 - 6x
3(1) = 15 - 6(2)
3 = 15 - 12
3 = 13 {not true}
• Option Three
2x + y = 5
2(-2) + (-9) = 5
-4 - 9 = 5
-13 = 5 {not true}
3y = 15 - 6x
3(-9) = 15 - 6(-2)
-27 = 15 + 12
-27 = 27 {not true}
• Option Four
2x + y = 5
2(-4) + 13 = 5
-8 + 13 = 5
5 = 5 {true}
3y = 15 - 6x
3(13) = 15 - 6(-4)
39 = 15 + 24
39 = 39 {true}
Answer:
(A) 
Step-by-step explanation:
To Simplify: The quantity 3 times x to the 4th power plus 5 times x to the 2nd power plus 2 times x all over x.
Solution: The given statement can be easily rewritten as:
,
and
Thus, according to the statement, the expression can be written as:
⇒
which is the required simplified expression.
Thus,option A is correct.
