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WINSTONCH [101]
3 years ago
15

Four more than twice a number is 8

Mathematics
2 answers:
lys-0071 [83]3 years ago
6 0
Lets say the number equals x

Four more than twice a number is 8

4 more than twice a number is 8    

4 more than twice x is 8        (twice means 2 times)

4 more than 2x is 8               (more than means to add)

2x + 4 is 8

2x + 4 = 8

2x = 8 - 4

2x = 4

x = 4/2

x = 2
Contact [7]3 years ago
4 0
Four more than twice a number…..the root of this problem is 2. Twice 2 is 2x2 = 4 and then four more that number is 4 + 4 = 8.

Hope this helps. :)
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The 9th and the 12th term of an arithmetic progression are 50 and 65 respectively. find the common difference
Rzqust [24]

The first term of the arithmetic progression exists at 10 and the common difference is 2.

<h3>How to estimate the common difference of an arithmetic progression?</h3>

let the nth term be named x, and the value of the term y, then there exists a function y = ax + b this formula exists also utilized for straight lines.

We just require a and b. we already got two data points. we can just plug the known x/y pairs into the formula

The 9th and the 12th term of an arithmetic progression exist at 50 and 65 respectively.

9th term = 50

a + 8d = 50 ...............(1)

12th term = 65

a + 11d = 65 ...............(2)

subtract them, (2) - (1), we get

3d = 15

d = 5

If a + 8d = 50 then substitute the value of d = 5, we get

a + 8 * 5 = 50

a + 40 = 50

a = 50 - 40

a = 10.

Therefore, the first term is 10 and the common difference is 2.

To learn more about common differences refer to:

brainly.com/question/1486233

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4 0
2 years ago
Three cards are drawn with replacement from a standard deck. what is the probability that the first card will be a diamond, the
svlad2 [7]
507/17576 or 0.0288 

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6 0
3 years ago
Find the lcm for 5,8,4
mash [69]

Answer:

2⋅2⋅2⋅5=40 2 ⋅ 2 ⋅ 2 ⋅ 5 = 40

6 0
3 years ago
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Ann Zoe and Jim bought a present for ben. Ann cooperated with $12 less than Zoe and $16 less than Jim. If the cost of the presen
sergeinik [125]

Let A represent the amount Ann contributed, Z represent Zoe's contribution, and J represent Jim's contribution toward the present.

Ann (A): A

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Jim (J): A = J - 16 → J = 16 + A

A + Z + J = 154

(A) + (12 + A) + (16 + A) = 154

3A + 28 = 154

3A = 126

A = 42

Ann (A): A = 42

Zoe (Z): Z = 12 + A = 12 + 42 = 54

Jim (J): J = 16 + A = 16 + 42 = 58

Answer: Ann=42, Zoe=54, Jim=58

6 0
3 years ago
The distance of AB = [?]<br> Round to the nearest tenth.<br> No links and actual help plz!
FrozenT [24]

AB = 5.6
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8 0
3 years ago
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