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PilotLPTM [1.2K]
3 years ago
14

If 7 times a number is decreased by 5 and this difference is doubled the result is 14 less than twice the number. What is the nu

mber
Mathematics
1 answer:
andrey2020 [161]3 years ago
6 0
2(7n-5)=2n-14

14n-10=2n-14

12n=-4

n=-1/3
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ohaa [14]
<h2>Part a)</h2>

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Coplanar means 'on the same plane'.

The points on the same plane as point A are:

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<h2>Part c)</h2>

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5 0
1 year ago
PLZ HELP!!!!!!! <br><br> Evaluate.<br><br> 43−4÷2⋅5<br><br> 20<br> 40<br> 54<br> 150
vitfil [10]
Isnt it 33 ////??? thats what i got.
6 0
3 years ago
Read 2 more answers
Compare -6/11 -2/3 ^ = ^
nignag [31]

Answer:

-40/33

Step-by-step explanation:

3 0
3 years ago
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Need someone to help me please!
mylen [45]

Answer:

\huge\boxed{\sf A = 8\ cm\²}

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\rule[225]{225}{2}

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valentina_108 [34]

Answer:

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Step-by-step explanation:

A sequence is a set of numbers that are in order.

In an arithmetic sequence the difference between one term and the next is a constant.  In other words, we just add the same value each time infinitely.

If the first term of an arithmetic sequence is a_1 and the common difference is d, then the nth term of the sequence is given by:

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For the sequence

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The pattern is continued by adding -11 to the last number each time.

An arithmetic series is the sum of an arithmetic sequence.  We find the sum by adding the first, a_1 and last term, a_n, divide by 2 in order to get the mean of the two values and then multiply by the number of values, <em>n</em>

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The sum of the arithmetic sequence is

a_{8}=-2+(8-1)(-11)=-2-77=-79

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3 0
3 years ago
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