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antoniya [11.8K]
4 years ago
13

Find the n value in the solution to the system of equations 2n+7 4n-3

Mathematics
2 answers:
crimeas [40]4 years ago
8 0
Your answer is: n=-7/2 or n=3/4
weeeeeb [17]4 years ago
3 0

Answer:

The answer is n=5

Step-by-step explanation:

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(x² + 6x +11) + (3x² 7X+Y)
Tanzania [10]

Answer:

2+6x+11+3x27x+y

=x2+6x+11+3x28+y

Answer:

=3x28+x2+6x+y+11

Step-by-step explanation:

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3 years ago
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Answer:

The third one for the first picture and the second one for the second picture

Step-by-step explanation:

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3 years ago
If 1/a+1/b+1/c= 1/a+b+c than prove that 1/a7+1/b7+1/c7= 1/a7+b7+ c7​
Rainbow [258]

Step-by-step explanation:

1/a + 1/b + 1/c = 1/(a+b+c)

=> 1/a + 1/b = 1/(a+b+c) -1/c

=> (b+a)/ab = {c - (a+b+c)/c(a+b+c)

=> (a+b)/ab = -(a+b)/(ac+bc+c^2)

=> 1/ab = -1/(ac+bc+c^2)

=> -ab = ac+bc+c^2

=-c^2 = ab+bc+ca

Similarly we can show that

-b^2 =ab+bc+ca and -c^2 = ab+bc+ca

So a=b=c. since -a^2 = -b^2 = - c^2

Then 1/a + 1/b + 1/c = 1/(a+b+c) => 3/a= 1/3a

=> 1/a^5 + 1/b^5 + 1/c^5 =3/a^5=(( 3/a )(1/a^4)

= 1/3a × 1/a^4 = 1/3a^5 = 1/(a^5 +b^5+c^^5)

Hope it help

4 0
3 years ago
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a lab uses negative numbers to describe a car moving backward on a road if the car was at -75.5 feet ,went forward 23 feet and t
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Did you that that God loves you and wants the best for you
6 0
3 years ago
Ms. Gallegos burns 236 calories while riding her bike each hour. She wants to burn more than 590 calories riding her bike at the
olga2289 [7]

Answer:

T > 2.5

Explaination -

t > 2.5

t < 2.5

t > 0.4

t < 0.4

Here it is given that Gallegos burns 236 calories riding her bike each hour.

She wants to burn more than 590 calories riding her bike at the same rate.

Let the time required = t hours

So

236t > 590

⇒ t > 590/236

⇒ t > 2.5

<em>Therefore, the answer is </em> t > 2.5

7 0
3 years ago
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