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Doss [256]
3 years ago
8

Find the 20th term from the last term of the AP:3,8,13,..., 253. ​

Mathematics
1 answer:
RoseWind [281]3 years ago
3 0

Answer:

158

Step-by-step explanation:

The sequence is 3, 8, 13, ..., 253.

Going backwards, it's 253, 248, 243, ..., 3.

First term is 253, common difference is -5.

The nth term is:

a = 253 − 5(n − 1)

The 20th term is:

a = 253 − 5(20 − 1)

a = 158

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Answer: \boxed{\bold{w=18}}

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Explanation: \downarrow\downarrow\downarrow

<><><><><><><>

Note: \bold{Fraction \ Bar \ "/" \ = \ \div}

[ Step One ] Multiply Both Sides By 9

\bold{\frac{9w}{3+6}=2\cdot \:9}

[ Step Two ] Simplify

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\bold{\rightarrow Mordancy \leftarrow}

6 0
3 years ago
Please helpppp meee !!!!
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Answer:

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6 0
2 years ago
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Name the figure below in two different ways.<br> C<br> J<br> b
Irina18 [472]

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The figure has the midpoint of J.

This means that when you are naming the figure, J has to be in the middle of either of the names that you choose.

You can therefore name the shape CJB which would mean that C is the starting point and B is the ending point.

Or you could name it BJC with B being the starting and C being the ending.

Rest of the question:

Shape description is that of a line that has three different points which are C, J, and B.

Find out more on naming figures at brainly.com/question/22749241.

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4 0
1 year ago
a 5 sided solid has the numbers 1,2,3,4, and 5. what is the probability of rolling two five-sided solids and getting a sum of ei
kipiarov [429]
So this is going to be alot of writing to show my thinking but ill bold the answer.

1,1
1,2
1,3
1,4
1,5

2,1
2,2
2,3
2,4
2,5

3,1
3,2
3,3
3,4
3,5

4,1
4,2
4,3
4,4
4,5

5,1
5,2
5,3
5,4
5,5

next ill mark all the ones that equal 4 or 8 when added together, with an x

1,1
1,2
x1,3
1,4
1,5

2,1
x2,2
2,3
2,4
2,5

x3,1
3,2
3,3
3,4
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4,1
4,2
4,3
x4,4
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5,1
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that is 6 (that equal 4 or 8) out of 25

so your ratio would be 6:19
6 0
3 years ago
9. Evaluate (-7) -10 ÷ (-28)-10<br> pls solve fast
Juli2301 [7.4K]

Answer:

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Step-by-step explanation:

(-7) -10 / (-28)-10

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= 17/38

You can keep the answer in fraction as 17/38 or ≈ 0.45

Hope this help you :3

7 0
2 years ago
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