Answer:
14.4km
Step-by-step explanation:
<h2>Speed = distance / time </h2>
- speed = 4.8 km/h
- time = 3 hrs
- distance = ?
Distance = speed * time
Distance = 4.8 * 3 = 14.4km
Y = -3x - 1......so we sub in -3x - 1 in for y in the other equation
2x + 5y = 12
2x + 5(-3x - 1) = 12....now distribute the 5 through the parenthesis
2x - 15x - 5 = 12...add 5 to both sides
2x - 15x = 12 + 5..combine like terms
-13x = 17...divide both sides by -13
x = -17/13
now sub in -17/13 for x in the other equation
y = -3x - 1
y = -3(-17/13) - 1
y = 51/13 - 1
y = 51/13 - 13/13
y = 38/13
so the solution is (-17/13, 38/13)
B is 2,2 A is -1,1 c is 2,-1
Answer:
76%
Step-by-step explanation:
pls mark brainliest!
