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kobusy [5.1K]
3 years ago
5

Can someone help me please

Mathematics
1 answer:
Effectus [21]3 years ago
6 0

Answer: 9.75 m

Step-by-step explanation:

You would plug in 30 for x and get the answer of 9.75 m

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What is x?<br> 7(x – 5) = 9x – 3
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Answer:

x = -16

Step-by-step explanation:

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The first two terms in an arithmetic progression are -2 and 5. The last term in the progression is the only number in the progre
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Given:

The first two terms in an arithmetic progression are -2 and 5.

The last term in the progression is the only number in the progression that is greater than 200.

To find:

The sum of all the terms in the progression.

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First term : a=-2

Common difference : d = 5 - (-2)

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a_n=a+(n-1)d

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a_n=-2+(n-1)(7)

According to the equation, a_n>200.

-2+(n-1)(7)>200

(n-1)(7)>200+2

(n-1)(7)>202

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(n-1)>28.857

Add 1 on both sides.

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Sum of n terms of an A.P. is

S_n=\dfrac{n}{2}[2a+(n-1)d]

Substituting n=30, a=-2 and d=7, we get

S_{30}=\dfrac{30}{2}[2(-2)+(30-1)7]

S_{30}=15[-4+(29)7]

S_{30}=15[-4+203]

S_{30}=15(199)

S_{30}=2985

Therefore, the sum of all the terms in the progression is 2985.

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Step-by-step explanation:

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In case there is no double entry system is followed, profit can be calculated by comparing the opening and closing capital. In the given situation this can be calculated as:

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