Answer: (‑(15*x))+39
Step-by-step explanation:
Answer:
r ≥ -9
Step-by-step explanation:
Answer:
The Answer is B
Step-by-step explanation:
+7 at the end means up 7
The - 4 in the middle represents right 4
These are found using basic rules of translating equations
Answer:
Step-by-step explanation:
125 miles / 150 minutes = 300 miles / x Criss multiply
Notice that the numerators both have the same units -- miles. Proportions should always be set up that way.
125 x = 150 * 300 Combine the right
125x = 45000 Divide by 125
x = 45000/125
x = 360 more minutes which is 6 hours.
Answer:
- team: 8 kph
- current: 4 kph
Step-by-step explanation:
The downstream speed is ...
speed = distance / time
speed = 36 km/(3 h) = 12 km/h
The upstream speed is ...
12 km/(3 h) = 4 km/h
__
If b and c represent the speeds of the boat and current, respectively, then we have ...
b + c = 12
b - c = 4
Adding these gives ...
2b = 16
b = 8
c = b -4 = 4
The rate of the rowing team in calm water is 8 km/h; the rate of the current is 4 km/h.
