The answer is 160 because 312÷2 equals 156 and 156 is closer to 160 than 150
In order to get the answer to this question you will have to use PEMDAS and solve.
Using PEMDAS:
Therefore your answer is "-103."
Hope this helps.
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.
Jim will probably need 6 cups of strawberries to yeild 10 jars
