Answer:
Yes, C is correct.
Step-by-step explanation:
Answer:
The rate of descent is 4 ft/min.
He will descent 24 ft in 6 min.
Step-by-step explanation:
Consider the provided information.
He starts at sea level and then descends 10 feet in 2 1/2 minutes.
First convert the mixed fraction as shown:
Therefore the rate of descent is:
The rate of descent =
Hence, the rate of descent is 4 ft/min
Now find In 6 minutes, how much he will descent:
Hence, he will descent 24 ft in 6 min.
$4.40
2 ÷ 5= 2/5 = .4 pounds or 2/5 of a pound per friend
Answer:
Step-by-step explanation:
We have been two algebraic expressions which is given below:
We have to find the value of x - y. so we need to find the value of x and y.
4x - y = 1 * 3
3x + 2y = 20 * 4
- 12x - 3y = 3
- 12x + 8y = 80
--------------------
-11y = - 77
y = 77/11
y = 7
- <u>Substitute the value of y in equation 1.</u>
4x - y = 1
4x - 7 = 1
4x = 1 + 7
4x = 8
x = 8/4
x = 2
- x - y
- 2 - 7 = -5
- Therefore, the required value of x, y , and x - y are 2,7 and -5 respectively.