Answer:
-12
Step-by-step explanation:
Just sustitute the z for -4
z+z+z
-4+(-4)+(-4)
=-12
I hope this help :)
Answer:
A
Step-by-step explanation:
5/5=1 so if there are two sets it equals 2
Answer:
x=17/3, y=10/3. (17/3, 10/3).
Step-by-step explanation:
4x-5y=6
2x+5y=-28
-----------------
4x-5y=6
-2(2x+5y)=-2(-28)
--------------------------
4x-5y=6
-4x-10y=56
------------------
-15y=-50
15y=50
y=50/15
y=10/3
4x-5(10/3)=6
4x-50/3=6
4x=6+50/3
4x=18/3+50/3
4x=68/3
x=(68/3)/4
x=(68/3)(1/4)=68/12=17/3
Answer:
8.84444444444
Step-by-step explanation:
Answer: The length is 24.5 feet.
Step-by-step explanation:
The formula for the perimeter of a rectangle is P = 2L + 2W.
Plug in the values you know
87 = 2L + 2(19)
Solve for L
87 = 2L + 38
subtract 38 from both sides
49 = 2L
divide both sides by 2
L = 24.5
