Answer:
its the first graph in the first one and the same thing with the second graph in the number 2 pleaes brailnliest
Step-by-step explanation:
According to the rule of 72, that rate will be 72/33 ≈ 2.18 percent.
Answer:
Step-by-step explanation:
3x+18>2x
3x-2x>-18
x>-18
If she went 10 miles upstream in the same time as she went 20 miles downstream, that means the downstream speed is twice the upstream speed.
The speed is still water is 9 mph.
The speed of the current is c.
Going downstream, the current adds speed, so the sped downstream is 9 + c.
The speed upstream is 9 - c.
9 + c is twice 9 - c.
9 + c = 2(9 - c)
9 + c = 18 - 2c
3c = 9
c = 3
Answer: The speed of the current is 3 mph.
Check:
9 + c = 12
9 - c = 6
By taking into the account the speed of the current, the downstream speed, 12 mph, is indeed twice the upstream sped, 6 mph.
