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Snowcat [4.5K]
2 years ago
10

Help pls 2x^2+5x+3x+1

Mathematics
1 answer:
Oxana [17]2 years ago
4 0

Answer: 2x^2+8x+1

Step-by-step explanation:

5x+3x=8x

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Please help me find x in the proportion: 4/x=5/9.
Nonamiya [84]
First multiply 4 so x is on its own.

5/9 multiplied by 4/1 is 20/9.

20/9 simplifies to 2 and 2/9.

x = 2 and 2/9

Hope this helped, and please mark brainliest! :)
8 0
3 years ago
Question I need to Answer: How many beats can a heart pound in 20 minutes?
Ksivusya [100]

Answer:

1300

Step-by-step explanation:

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2 years ago
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What is the solution to the system of equations? {x+y=7x=y+3
abruzzese [7]
<h3>Answer:</h3>

x=5, y=2

<h3>Explanation:</h3>

The second equation gives an expression for x that can be substituted into the first equation.

... (y+3) +y = 7 . . . . . .substitute y+3 for x

... 2y + 3 = 7 . . . . . . . colect terms

... 2y = 4 . . . . . . . . . . subtract 3 from both sides

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Using the expression for x, we can find its value.

... x = y + 3

... x = 2 + 3 . . . . . . . . . substitute for y

... x = 5

The solution is (x, y) = (5, 2).

7 0
3 years ago
There are 36 pencils in 6 packs. Igor wants to know how many pencils are in 1 pack. Elsa wants to know how many pencils are in 3
IgorC [24]

Answer:

6 pencils

18 pencils

Step-by-step explanation:

Given that

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Number of pencils / number of packs :

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Each time, you are dividing by 2, therefore making the common ratio \frac{1}{2}


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3 years ago
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