Y = -x + 4.....so sub in -x + 4 in for y in the other equation
x + 2y = -8
x + 2(-x + 4) = -8
x - 2x + 8 = -8
x - 2x = -8 - 8
-x = -16
x = 16
y = -x + 4
y = -16 + 4
y = - 12
one solution (16,-12)
Answer:
10 19/10 meters
Step-by-step explanation:
Step one:
given data
let the amount of string used for the soccer field be x
and the amount used for coach spot be y
Also, let the total string used be represented as T
Step two:
Hence the expression for the total is
T= x+y
T= 9 1/2+ 2 2/5
T= 9.5+ 2.4
T= 11.9
or
T= 119/10 meters
or
T= 10 19/10 meters
Answer:83 and 97
Step-by-step explanation:
Let the angle be y
The second angle will be y+14
A supplementary angle equals 180°
y + y + 14=180
2y+14=180
2y=180-14
2y=166
y=166/2
y=83
The first angle is 83.
Second angle will be 83+14=97.
Answer:
1080
Step-by-step explanation:
if 10 percent are left handed that means that 90 percent are right handed
- number of people that are right handed = 0.9 × 1200
- number of people that are right handed = 1080