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Scrat [10]
3 years ago
13

The difference of six times a number and four is twenty. Find the number.

Mathematics
2 answers:
lys-0071 [83]3 years ago
8 0

Answer:

8/3 or 2.667

Step-by-step explanation:

6x+4=20

20-4= 16

6x/6=x

16/6=8/3 or 2.667

Inessa [10]3 years ago
3 0

Answer: 4 is the number.

Step-by-step explanation: Let the number be represented by B.

6xB - 4 = 20

6B - 4 = 20

6B = 20+4

6B = 24

B = 24/6

B = 4

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Alex is twice as big as his brother. Doug is 5 inches taller than Alex
seropon [69]
1) Let 'A' = Alex's Height
A=x^2

2) Let 'D' = Doug's Height
A+5=D

3) D=x^2 + 5

4) A= 24^2 = 576 (inches)
-Alex is 576 inches tall.
D= 576+5
D=581 Inches
-Doug is 581 inches tall.

5) X show's Alex's brother's height. After the height is squared it equals Alex's height.
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4 years ago
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Can someone help me? I'll reward points + brainalist
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The answer for the following question is 12

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5 0
3 years ago
Please answer, will mark brainliest :)
Karolina [17]

Answer:

100>=500-15x

Step-by-step explanation:

He needs at least 100, so it's greater than OR equal to 100. He starts with 500 and goes down 15 each week. The x stands for the amount of weeks that are in the school year. Sorry for the terrible formatting on the greater than or equal to.

8 0
4 years ago
Suppose it takes 180 credits to get a baccalaureate degree. You accumulate credit at the rate of one credit per quarter for each
jonny [76]

The total time to be invested to get a degree would be 630 hours

Total credits required = 180 credits

Number weeks In a quarter = 10 weeks

Number of credit earned per hour = 1 credit

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180 / 10 = 18 credits per week

Since, credit is earned at a rate of 1 per hour ; then ;

Number of class hours per week = 18 hours per week.

This means 180 class hours is required.

For every class hour ; 2.5 hours is used for outside class study

Hence, Total outside class study hours will be :

(2.5 hours × 180 hours) = 450 hours

Therefore,

Total hours that would be invested :

(total outside class hours + tt’otal class hours)

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Learn More : brainly.com/question/18796573

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3 years ago
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Mariulka [41]

Answer:

(4 ,0) is a solution

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7(4) - 5(0) = 28 - 0 = 28

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4 years ago
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