9514 1404 393
Answer:
- boat: 72 km/h
- current: 16 km/h
Step-by-step explanation:
The speed difference between boat and current is the upstream rate:
(448 km)/(8 h) = 56 km/h
The sum of speeds of boat and current is the downstream rate:
(440 km)/(5 h) = 88 km/h
The rate of the boat is half the sum of these:
(56 +88)/2 = 72 . . . km/h
The rate of the current is half their difference:
(88 -56)/2 = 16 . . . km/h
The rate of the boat is 72 km/h; the rate of the current is 16 km/h.
Answer:
∠ P = 116°
Step-by-step explanation:
Given:
In Δ NOP
PN = OP
∠ O = 32°
Find:
∠ P
Computation:
PN = OP
So,
∠ O = 32° = ∠ N = 32°
So,
∠ P = 180 - ∠ O - ∠ N
∠ P = 116°
It’s 12 + N! I did the math the math so your welcome
Answer:
x=-1, y=2
Step-by-step explanation:
2(2x+4)=6x+10
2x=-2
x=-1
y=2(-1)+4
y=2