Answer:
i hope its correct
Step-by-step explanation:
11x + 2y=68 ------------1
5x+y=13 ------------2
y= 13-5x. ------------3
put 3 into 1
11x +2(13-5x) =68
11x +26 -10x =68
x=42
put x =42 into 2
5(42) +y =13
210+y=13
y=13-210
y=197
1.
1 km = 1000 m
619.5 km = 619.5 * 1000 m = 619,500 m
2.
1,000 mm = 1 m
5,941 mm = 5.941 m
3.
2
4.
4
Answer:
40 Percent
Step-by-step explanation:
I just used a calculator.
Answer:
what did you say
Step-by-step explanation:
If d=6, there are two real solutions.
Rule if d=discriminant:
d>0, two real solutions
d=0, one real solution
d<0, no real solutions (but there are two imaginary solutions)
