<span>x+9=2x+1
Since both equations give the value of y, therefor y = y. You simply substitute y with its corresponding equation.
y = y
x + 9 = 2x + 1 *we need to find the value of x to get the value of y.
x - 2x = 1 - 9
-x = -8
-1x/-1 = -8/-1
x = 8
Substitute x with its value to get y.
Equation S: y = x + 9 </span>⇒ y = 8 + 9 ⇒ y = 17
Equation T: y = 2x + 1 ⇒ y = 2(8) + 1 ⇒ y = 16 + 1 ⇒ y = 17
<span>x+9=2x+1
</span>17 = 17
Answer: it’s C
Step-by-step explanation:
Answer:
The 3rd and 4th option because their signs are positive and won't change a negative sign.
Step-by-step explanation:
18
the calculated percentage of 75 anf 24 is 18
Time/shifts=time per knight
shifts=5
24/5=hours
24/5=20/5+4/5=4+4/5
4/5 times 60=48
4hr and 48 mins
24hr=60*24mins=1440mins
1440/5=288mins per night
A. 4 and 4/5 hour or 24/5 hours
B. 4hr and 48 mins
C. 288 mins
