Answer:
11
Step-by-step explanation:
11 + 8 + 14 + v + 8 + 14
================== = 11 Combine Terms
6
(55 + v) / 6 = 11 Multiply by 6
55 + v = 11 * 6 Combine the right
55 + v = 66 Subtract 55
55-55+v = 66- 55
v = 11
2 have 10
others have 20
5 present total
2 have 10 pounds
5-2=3
3 have 20 pounds
total weight=2 times 10+3 times 20=20+60=80
80 bounds
1pound=16oz
80 times 1pound=16oz times 80
80 pounds=1280oz
answe ris 1280 oz
2/5 of them take french
Just multiply 250 by 2/5 and you have your answer for #2!.
Answer:
Step-by-step explanation:
There are a couple of things to know before we set up the table for this problem. First, we need to remember that if the boat is traveling against the current, that the current is going to slow the boat down; likewise, going with the current will speed the boat up. Second, we need to realize that if the boat's distance against the current is the same as the distance with the current, then the distances in the equations will be set equal to one another.
Set up the table with U (against the current) and D (with the current) on the outside and fill in what we are given:
d = r x t
U
D
This is the table. Now we will fill it in:
d = r x t
U r - 3 x 3
D r + 3 x 1.8
The formula for the distance equation is at the top of the table as d = rt. We already decided that the distances that the boat traveled upstream and downstream were the same so we will set those d values equal to each other, but we first need to get the d value for each row. If distance = rate times time, then for the first row:
d = (r - 3)3 and
d = 3r - 9. For the second row:
d = (r + 3)1.8 and
d = 1.8r + 5.4. Setting them equal to each other:
3r - 9 = 1.8r + 5.4 and
1.2r = 14.4 so
r = 12 mph
a) The linear function is:
b) The estimate for the number of people employed in 2012 is of 569.2.
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A linear function has the following format:
In which
- m is the slope, that is, how much y changes when x changes by 1.
- b is the y-intercept, which is the value of y when x = 0.
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Item a:
- During the first year of observation, the number of people, in thousands of dollars, was of 373. Thus, the y-intercept is
- In 10 years, it changed from 373 to 591, thus, the slope is:
The function is:
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Item b:
2012 is 9 years after 2003, thus, this is
The estimate for the number of people employed in 2012 is of 569.2.
A similar problem is given at brainly.com/question/24742848