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KiRa [710]
4 years ago
10

The difference of 3 times a number and 18 is 39. what is the number?

Mathematics
2 answers:
Setler79 [48]4 years ago
5 0
The number is 7(Seven).
Ber [7]4 years ago
4 0
Just set up an equation, with "x" being the unknown number.
3x-18=39
3x=57
x=19.
The unknown number is 19.
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Solve for x.<br> 21)<br> 60°<br> 8x<br> 80°
Elden [556K]

Answer:

x = 5

Step-by-step explanation:

Sum of angles = 180, so

60 + 80 + 8x = 180

140 + 8x = 180

8x = 180 - 140 = 40

x = 40/8 = 5

7 0
3 years ago
Correctly complete this sequence: 88511, 16351, ?, 10251
Temka [501]

Answer:

73155 is the required 3rd number that will complete the sequence as: 88511, 16351, 73155 , 10251.

Step-by-step explanation:

So, let us consider 88511 and determine the pattern to find the next number and so on to complete the sequence.

Adding the first 2 digits in the number 88511 i.e.  8 + 8 = 16

Subtracting the 3rd digit from the 2nd digit i.e. 8 - 5 = 3

Multiplying the 3rd digit and 4th digit i.e. 5 × 1 = 5

Dividing the 4th digit by the 5th digit i.e. 1 ÷ 1 = 1

Hence, using these steps would get us the number 16351.

So, the next number would be obtained using same steps:

Adding the first 2 digits in the number 16351 i.e.  1 + 6 = 7

Subtracting the 3rd digit from the 2nd digit i.e. 6 - 3 = 3

Multiplying the 3rd digit and 4th digit i.e. 3 × 5 = 15

Dividing the 4th digit by the 5th digit i.e. 5 ÷ 1 = 5

Hence, using these steps would get us the number 73155.

So, the next number would be obtained using same steps:

Adding the first 2 digits in the number 73155 i.e.  7 + 3 = 10

Subtracting the 3rd digit from the 2nd digit i.e. 3 - 1 = 2

Multiplying the 3rd digit and 4th digit i.e. 1 × 5 = 5

Dividing the 4th digit by the 5th digit i.e. 5 ÷ 5 = 1

Hence, using these steps would get us the final number 10251.

So, from this pattern method, we determine that 73155 will be the 3rd number in the sequence: 88511,16351,?,10251.

So, the complete sequence would be: 88511, 16351, 73155, 10251.

Keywords: sequence, number

Learn more about sequence from brainly.com/question/12373616

#learnwithBrainly

8 0
3 years ago
Factor the four-term polynomial by grouping 3x-3+x^3-4x^2
yaroslaw [1]
(x4−3x3+4x2−8)/(x+1) = x3−4x2<span>+8x−8.</span>
6 0
4 years ago
Which expressions represent the distance between 1.8 and 9.4 on the number line?
sergiy2304 [10]
9.4 - 1.8 will tell you the distance between them
5 0
3 years ago
Meggie starts with 100$ in her account.she wants to deposit 5$ per week . write an equation in slope intercept form to represent
vladimir2022 [97]

Answer:

y = 5x + 100

Step-by-step explanation:

5 0
3 years ago
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