Answer:
The rate of the current is 2 miles per hour.
Step-by-step explanation:
Let us assume that the rate of the river is v miles per hour.
The speed of the boat is 12 miles per hour.
Let us assume also that the boat can go 21 miles in t hours in the downstream and 15 miles upstream at the same time i.e. t hours.
So, from the condition given we can write that
......... (1), and
......... (2)
Now, adding those two equations we get
⇒ 
hours
Now, from equation (1), we get,
⇒ v = 2 miles per hour
Therefore, the rate of the current is 2 miles per hour. (Answer)
Answer:
$7,305.50
Step-by-step explanation:
The computation of the FICA tax pay in 2005 is shown below:
Medicare = 1.45% × $119,000 = $1,722.50
And, Social security tax = 6.2% × 90,000 = $5,580
So, the FICA tax in 2005 is
= Medicare tax + Social security tax
= $1,722.50 + $5,580
= $7,305.50
Answer:
x = -2
y = - 5
Step-by-step explanation:
-5y - 10x = 45
-3y + 10x = -5
------------------------Add
-8y = 40
y = -5
-3(-5) + 10x = -5
15 + 10x = -5
10x = -20
x = -2
Answer
x = -2 and y = - 5
Answer: 1 and 3
Step-by-step explanation:
I had the same question on my test the other day hope this helped.
Answer: 1.5
Da maths: Bruh ask google
