Recall that
So we have
So either .
Since , we expect , so we take the negative square root. Then
This then means we have
Answer:
200$
Step-by-step explanation:
In this case, we already know the ratio between the savings and the spendings and it's 3:5.
This means that for every 3$ saved, Sam spents 5$.
Then, we only need to do a simply rule of 3, to stablish the amount spended.
If:
120 ---------> 3
X ------------> 5
Solving for X, we have:
120/X = 3/5
X = 120 * 5 / 3
X = 600 / 3
X = 200$
If you want to verify that this calculation is correct, then do the ratio between 120 and 200. If the ratio is 3:5 is correct. Here's the demostration:
120/200 --->simplified by 10: 12/20 ------->simplified by 4: 3/5
Answer:
Step-by-step explanation:
Perimeter of Park 1 = 2*(54+38)
= 2 * 92
=184 feet
Perimeter of park 2 = 2*(32+ 22)
= 2 * 54
= 108 feet
Total distance = Perimeter of park 1 + perimeter of park 2
= 184 + 108
= 292
Answer:
C
Step-by-step explanation:
Any number with a 0 at the end is divisible by 10