Answer:
Step-by-step explanation:
b and c are the speeds of the boat and current, respectively.
Traveling upstream, the boat moves b-c km per hour.
Traveling downstream, the boat moves b+c km per hour.
b-c = (60 km)/(½ h) = (120 km)/h
b+c = (60 km)/(⅓ h) = (180 km)/h
Adding the equations together,
2b = (300 km)/h
b = (150 km)/h
c = (30 km)/h
Answer:
raw
Step-by-step explanation:
Answer:
Step-by-step explanation:
If two triangles are equal, it means that the ratio of the length of each side of one triangle to the length of the corresponding side of the other triangle is constant. Also, corresponding angles are congruent.
1) Triangle TUV is similar to triangle SQR because
Angle Q is congruent to angle U
TU/SQ = UV/QR = 2
2) Triangle ABC is not similar to triangle DEF because the ratio of AB to DF is not constant.
Answer:
2
Step-by-step explanation:
15-4(x - 3)=5x+9
15-4x+12=5x+9
collect the like terms
27-9=5x+4x
18=9x
divide both sides by 9
x=2
The waiting time is 45 mins so,
12:45, 1:15, 1:45, 2:15
