Answer:
x(5)-13
Step-by-step explanation:
4 x 24 =
4 x 20 = 40
4 x 4 = 16
40 + 16 = 56
4 x 24 = 56
Not quite sure about #1 but x=58°
Let b be the speed of the boat, and c be the speed of the current. Then:
20/b+c=2/3 hr
20/b-c=1 hr
2/3b+2/3c=20
b-c=20
Then:
b+c=30
b-c=20
2b=50
b=25 mph
c=5 mph
☺☺☺☺
Answer:
C
Step-by-step explanation: