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SSSSS [86.1K]
3 years ago
6

The last term of an arithmetic sequence is 25, the common difference is 4, and the number of the terms is 9. What is the first t

erm?
Mathematics
1 answer:
Dafna11 [192]3 years ago
6 0
If you start at 25 and count down by 4, 8 times the answer you get is negative seven. so; -7, -3, 1, 5, 9, 13, 17, 21, 25.
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The larger of two consecutive ODD numbers is one less than twice the smaller number. Find the larger of the two numbers.
andrey2020 [161]

Answer:

<h3>             5</h3>

Step-by-step explanation:

z -  any integer

2z+1 - any odd integer (the smaller one)

2z+1+2 = 2z+3 - odd integer consecutive to 2z+1  (the larger one)

2(2z+1)    - twice the smaller number

2(2z+1) - 1    - one less than twice the smaller number

2(2z+1) - 1 = 2z + 3

4z + 2 - 1 = 2z + 3

2z = 2

 z = 1

2z+3 = 2•1+3 = 5

check:

2z+1 = 2•1+1 = 3,  

2(2z+1)-1 = 2(2•1+1)-1 = 2•3-1 = 5 = 2z+3

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4 years ago
What are the partial products that result from multiplying 15 x 32? (____ x ____) + (____ x ___) + (____ x ____) + (____ x ____)
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32=30+2 and both of the equations will give you the result of 4 partial products.

10x30=300

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3 years ago
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Answer:

1/5x+51=2x+42

Step-by-step explanation:

1/5 of x, the number, plus 51  is equal to 2 times the number plus 42.

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Step-by-step explanation:

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The pair of slacks would be

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Step-by-step explanation:

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