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Taya2010 [7]
4 years ago
10

I need help on these three problems, it’s Multiplying and Simplifying polynomials

Mathematics
1 answer:
vredina [299]4 years ago
7 0

<em><u>HOPE</u></em><em><u> </u></em><em><u>THIS</u></em><em><u> </u></em><em><u>WILL</u></em><em><u> </u></em><em><u>HELP</u></em><em><u> </u></em><em><u>U</u></em><em><u>.</u></em><em><u>.</u></em><em><u>.</u></em><em><u>.</u></em><em><u>.</u></em>

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Maisha has 3(x+2) hours reading a book 8x-5 hours sleeping and 2x hours playing.How many hours did she spend in all of these act
Mandarinka [93]
Add all the activities together

=3(x+2) + (8x-5) + 2x
multiply 3 by all in parentheses
=(3*x) + (3*2) + (8x-5) + 2x
=3x + 6 + 8x - 5 + 2x
combine like terms
=(3x + 8x + 2x) + (6 - 5)
=13x + 1

ANSWER: 13x + 1

Hope this helps! :)
6 0
3 years ago
Central High's enrollment increases at an average rate of 100 students per year, while Washington High's enrollment increases at
Alinara [238K]

Answer:

The two schools will have the same number of students in 5 years.

Step-by-step explanation:

The number of students for both these schools, after t years, can be modeled by linear functions.

Central High:

Currently has 3000 students.

Enrollment increases at an average rate of 100 students per year.

So after t years, the number of students that Central High will have is:

C(t) = 3000 + 100t

Washington High:

Currently has 2000 students.

Enrollment increases at an average rate of 300 students per year.

So after t years, the number of students that Washington High will have is:

W(t) = 2000 + 300t

If enrollments continue to change at the same rate, when will the two schools have the same number of students?

We have to find t for which:

C(t) = W(t)

So

3000 + 100t = 2000 + 300t

200t = 1000

t = \frac{1000}{200}

t = 5

The two schools will have the same number of students in 5 years.

8 0
3 years ago
8. 3x+10=14y<br> 8х -7y= 34
Fofino [41]

Answer:

hey, are these two questions or one simultaneous question?

3 0
3 years ago
Do you guys know how to do this I am struggling and need help?
Oksanka [162]

Answer:

i think its 234

Step-by-step explanation:

3 0
3 years ago
Phil has 3 times as many rocks as Peter. Together, they have 48 rocks. How many more rocks does Phil have than Peter?
Ivan
Let x = the number of marbles for Phil
Then 3x = the number of marbles for Peter
Together they have 3x+x=48 or 4x=48 and x=12
So Phil has x = 12 marbles and Peter has 3x, let x = 12, 3(12) = 36 marbles.
Peter has 24 more marbles than Phil.
3 0
4 years ago
Read 2 more answers
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