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Marat540 [252]
3 years ago
6

Last month,James bought a tree that grows 3 cm each day. It was 5 cm tall when he bought it and now it is 68 cm tall. The equati

on 5+ 3d= 68 can be used to find the number of days James has owned the plant
Mathematics
1 answer:
pshichka [43]3 years ago
4 0

Answer:

james has had the plant 21 days

Step-by-step explanation:

5 +3d= 68

5+3d-5= 68-5

3d= 63

3d/3=63/3

d=21

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kirill [66]

Answer:

A. 2.40

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Step-by-step explanation:

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6 0
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What is the value of log 13? Use a calculator. Round your answer to the nearest tenth. 0.1 0.3 1.1 2.6
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8 0
3 years ago
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X is the sum of y consecutive integers. w is the sum of z consecutive integers. If y = 2z, and y and z are both positive integer
zlopas [31]

Answer:

The answer is C.

Step-by-step explanation:

The key to solve the problem is the equation given

y = 2z         which means that<u> y is always an even number.</u>

For example:

let z = 1;       y  = 2(1)     y = 2;

let z = 2;      y  = 2(2)     y = 4;

let z = 3;      y  = 2(3)     y = 6;

And we know that for any set of consecutive integers with an even number of terms, the sum of the integers is never a multiple of the number of terms.

For example:

Set of numbers: [1,2,3,4,5,6] ;

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Number of terms of the set: 6;

Therefore, 21 is not a multiple of 6.

But for any set of consecutive integers with an odd number of terms, the sum of the integers is always a multiple of the number of terms.

For example:

Set of numbers: [1,2,3,4,5,] ;

Sum of the set:  1+2+3+4+5 = 15 ;

Number of terms of the set: 5;

Therefore, 15 is a multiple of 5.

And that's why we know that if y is always an even number (y = 2z), the sum of the consecutive integers (x) is not a multiple of y, therefore x/y cannot be an integer.

8 0
4 years ago
A single die is rolled twice. The 36​ equally-likely outcomes are shown to the right.
Gnom [1K]

Answer:

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Step-by-step explanation:

5 0
3 years ago
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