4. If the result, when solving a system by either elimination or substitution, is 3 = 3, the solution is:
a. (-5,3)
b. no solutions c. (3,-5)
d. infinitely many
n neitam hu aithar alimination or substitution is
= 4 the solution is:

Step-by-step explanation:

b) infinity many solution

If the equation has 0 = 2 then it has no solution

Answer is: infinitely many solutions .

98 points djdjsi zisksis sjsjsi sisksj sksjdj sksks sjsisj

54 kilometers per hour

step-by-step explanation:

according to rules:

1 km = 1000 meter

which means that 1 meter = 1/1000 km

1 hour = 3600 second [ as 1 hour = 60 min = 60 *60 seconds ]

which means that 1 second = 1/3600 hour

therefore, 1 kilometer/hour =

thus to convert 15 meter per second to kilometer per hour, we multiply 15 to 3.6 kilometer/hour.

15 meter/second=   which is the required answer.