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wariber [46]
3 years ago
13

A(1) = -2 A(n) = a(n-1) -5

Mathematics
1 answer:
ANEK [815]3 years ago
7 0
The answer you’re looking for is -5.
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Pat borrowed $2000 to help pay college expenses. The interest rate was 5% annually, and she will repay the loan in 4 years. How
valentina_108 [34]

Step-by-step explanation:

5% multipyed by 4 years is 20%

20% of 2000 is 400

6 0
3 years ago
Read 2 more answers
Prove that 25^11−5^19 is divisible by 31.
SCORPION-xisa [38]

Answer:

Divisible by 3 is the answer

Step-by-step explanation:

First get everything to have the same base of 5

25^11 - 5^19

(5^2)^11 - 5^19

5^(2*11) - 5^19

5^22 - 5^19

Now factor out the GCF 5^19 to get

5^22 - 5^19

5^(19+3) - 5^(19+0)

5^19*5^3 - 5^19*5^0

5^19(5^3 - 5^0)

5^19(125 - 1)

5^19*(124)

At this point, we factor the 124 into 31*4 to end up with this full factorization: 5^19*31*4

Therefore, 25^11 - 5^19 is equivalent to 5^19*31*4

Since 31 is a factor of the original expression, this means the original expression is divisible by 31.

4 0
3 years ago
You buy a game for $40 , and the sales tax is $2 . What percent of the game price are you paying in sales tax? 4% 5% 8% 20%
valina [46]
The answer of your question is 5% <span />
4 0
3 years ago
Solve the systems by the addition method 2x + y = - 1x - 2y = - 4
inna [77]

Answer:

x = -6/5

y =7/5

Step-by-step explanation:

2x + y = - 1

x - 2y = - 4

Multiply the first equation by 2 so we can eliminate y

2(2x + y = - 1)

4x + 2y = -2

Add this to the second equation

4x + 2y = -2

x - 2y = - 4

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

5x + 0y = -6

Divide by 5

5x/5 = -6/5

x = -6/5

Multiply the second equation by -2 so we can eliminate x

-2(x - 2y = - 4)

-2x+4y = 8

Add this to the first equation

2x + y = - 1

-2x+4y = 8

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

0x + 5y = 7

Divide by 5

5y/5 = 7/5

y =7/5

6 0
3 years ago
How to solve 1/5(x+10)=5x+25
Vadim26 [7]
X=- 115/24 
hope this helps :)
5 0
3 years ago
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