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Paladinen [302]
3 years ago
12

Each number in a group of natural numbers was divided by the sum of all the numbers in that same group. What is the sum of all t

he resulting fractions?
Mathematics
1 answer:
schepotkina [342]3 years ago
5 0

Answer:

1

Step-by-step explanation:

Let us consider the case of 3 numbers: x, y, and z.  

Then  x/x+y+z + y/x+y+z + z/x+y+z = x+y+z/x+y+z = 1

The same works also for any quantity of numbers.

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In 3-4 sentences, describe how you would find a line parallel to the line 2x + 5y = 15 that goes through the point (-10, 1). Be
larisa86 [58]

the parallel line is 2x+5y+15=0.

Step-by-step explanation:

ok I hope it will work

soo,

Solution

given,

given parallel line 2x+5y=15

which goes through the point (-10,1)

now,

let 2x+5y=15 be equation no.1

then the line which is parallel to the equation 1st

2 x+5y+k = 0 let it be equation no.2

now the equation no.2 passes through the point (-10,1)

or, 2x+5y+k =0

or, 2*-10+5*1+k= 0

or, -20+5+k= 0

or, -15+k= 0

or, k= 15

putting the value of k in equation no.2 we get,

or, 2x+5y+k=0

or, 2x+5y+15=0

which is a required line.

6 0
1 year ago
I would love if someone could help me Thanks in advance
Montano1993 [528]
Answer: Choice A, -1540 feet

----------------------------------

Explanation:

Multiply the rate (44 ft per sec) by the number of seconds (35) to get 44*35 = 1540

The answer will be negative to indicate that the altitude has gone down. If you put in a positive change, then the altitude would go up. So that's why the answer is choice A

Note: when you multiply 44 ft/sec by 35 sec, the "second" units cancel out leaving just feet.

Another note: if you want, think of the 44 as -44 to indicate that the plane is decreasing at a rate of 44 ft/sec

7 0
3 years ago
If (7,2) is an ordered pair of the function f(x) which of the following must be an ordered pair of the inverse of f(x)?
Harrizon [31]
All you have to do is to reverse the order of the x and y components of (7,2):
(2,7).
8 0
3 years ago
Read 2 more answers
Recall that the product (a + b)(a - b) is the
Aleks [24]

Answer:

The third option (9+3\sqrt{7}-3\sqrt{7}-\sqrt{49})

Step-by-step explanation:

With FOIL, this can be expanded. (a+b)(a-b) is equal to a²+ab-ab-b² or a²-b².

In this case, all the answers have 4 terms, so we want the first option. This makes the equation 3²+(3×\sqrt{7})-(3×\sqrt{7})-(\sqrt{7})².

Solving these gives 9+3\sqrt{7}-3\sqrt{7}-7. This is the same as  9+3\sqrt{7}-3\sqrt{7}-\sqrt{49}.

**This content involves multiplying with surds and expanding perfect squares, which you may wish to revise. I'm always happy to help!

8 0
3 years ago
Read 2 more answers
60 points to who answers with the work pls!!
Shkiper50 [21]

Answer:

Try c am sure it is correct

4 0
2 years ago
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