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3 years ago

I dont understand linear equations.

Mathematics

2 answers:

Ede4ka [16]3 years ago

8 0

It is simple combine like terms by adding or subtracting the coefficent only

Sonbull [250]3 years ago

3 0

Ck12 has great sources

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The average number of traffic tickets issued in a city on any given day

Anton [14]

Answer:

The most tickets were written on Saturday .On Saturday 325 tickets were issued

Step-by-step explanation:

The average number of traffic tickets issued in a city on any given day Sunday-Saturday can be approximated by

$T(x) = -6x^2 + 84x + 37$

Where x represents the number of days after Sunday

T(x) represents the number of traffic tickets issued.

Sunday = x=0

Monday = x=1

Tuesday = x=2

Wednesday = x=3

Thursday = x =4

Friday = x=5

Saturday = x=6

Substitute x= 0

$T(x) = -6x^2 + 84x + 37\\T(x) = -6(0)^2 + 84(0) + 37\\T(x)=37$

On Sunday 37 tickets were issued

Substitute x= 1

$T(x) = -6x^2 + 84x + 37\\T(x) = -6(1)^2 + 84(1) + 37\\T(x)=115$

On Monday 115 tickets were issued

Substitute x= 2

$T(x) = -6x^2 + 84x + 37\\T(x) = -6(2)^2 + 84(2) + 37\\T(x)=181$

On Tuesday 181 tickets were issued

Substitute x= 3

$T(x) = -6x^2 + 84x + 37\\T(x) = -6(3)^2 + 84(3) + 37\\T(x)=235$

On Wednesday 235 tickets were issued

Substitute x= 4

$T(x) = -6x^2 + 84x + 37\\T(x) = -6(4)^2 + 84(4) + 37\\T(x)=277$

On Thursday 277 tickets were issued

Substitute x= 5

$T(x) = -6x^2 + 84x + 37\\T(x) = -6(5)^2 + 84(5) + 37\\T(x)=307$

On Friday 307 tickets were issued

Substitute x= 6

$T(x) = -6x^2 + 84x + 37\\T(x) = -6(6)^2 + 84(6) + 37\\T(x)=325$

On Saturday 325 tickets were issued

Hence the most tickets were written on Saturday .On Saturday 325 tickets were issued

6 0

3 years ago

I am confused about how to explain this: Explain the difference in meaning between |-3| and -3.

Ivahew [28]

Answer:

Step-by-step explanation:

|-3| means the absolute value of -3. The absolute value sign means the number without its negative. The dictionary says: the magnitude of a real number without regard to its sign.

So |-3|= 3 and -3= -3

7 0

3 years ago

Help please someone ans

babymother [125]

Answer:

Step-by-step explanation:

the line in the middle shows the median

3 0

3 years ago

Liam is setting chairs for meeting he arranges chairs in 5 rows of the same length he has 3 chairs left over if he arranges the

Rina8888 [55]

Answer:

The answer to your question is 48 chairs

Step-by-step explanation:

Data

5 rows- 3 chairs left over

3 rows - 21 chairs left over

Process

1.- Write two equations each for each situation

x = number of rows

y = number of chairs

Equation 1 y = 5x + 3

Equation 2 y = 3x + 21

2.- Solve the system by equality

5x + 3 = 3x + 21

5x - 3x = 21 - 3

2x = 18

x = 18/2

x = 9

3.- Find the total number of chairs

y = 5(9)+ 3 y = 3(9) + 21

y = 45 + 3 y = 27 + 21

y = 48 y = 48

4.- Conclusion

There are 48 chairs

8 0

3 years ago

Sally wants to purchase some snowboarding equipment, clothes, and a season pass. She calculates that it will cost her about $1,8

Sonja [21]

Total Cost : 1800

12 dollars * 16 hours = 192 dollars earned

0.2 percent * 192 = 38.4 dollars saved

A.She earns 192 dollars every week

B. she will save 38.4 dollars * 7 weeks = 268.8  dollars in a week.

C. 7 days times 4.3 weeks = 30.1 days. 30.1 days * 38.4 = 1,155.84 dollars every month.

D. it will take her about 2 months to save the money. To be exact: 1.6 months.

Hope this helped!

8 0

3 years ago