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ser-zykov [4K]
3 years ago
12

Combine Like Terms and Evaluate

Mathematics
2 answers:
rosijanka [135]3 years ago
6 0

Answer:

29

Step-by-step explanation:

-2x+4+3y-5x-2y

Combine like terms

-7x+1y+4

evaluate

-7(-3) 1(4) 4

Solve

21+4+4

29

Nady [450]3 years ago
5 0
<h3 /><h2>- 2x + 4 + 3y - 5x - 2y</h2>

if x = - 3 and y = 4

<h3><u>simplification</u> </h3>

<h3>- 2x - 5x + 3y - 2y + 4</h3>

<h3>- 7x + y + 4</h3>

<h3><u>evaluation</u><u> </u></h3>

<h3>- 7x + y + 4</h3>

<h3>- 7 ( - 3 ) + 4 + 4</h3>

<h3>21 + 4 + 4</h3>

<h2>= 29</h2>

hope that helps !

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A map of New York has a scale of 1/2 inch : 5 miles. Cindy knows the
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Answer:

8.5 inches

Step-by-step explanation:

1/2 in = 5 miles

? = 85 miles.

So you would do 85/5 to figure out how many times you have to multiply 5 to get to 85.

85/5= 17

So then you would multiply 17 by 1/2 to get the answer 8.5. So that would b 8.5 inches

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3 years ago
Cost per mile is calculated by dividing total cost by total miles. Using the notation P = cost per mile, C = total cost, and M =
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4 years ago
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If the passes through points (-4,-6) and ( 2 ,6), the rate of change of the line is equal to
Delvig [45]

Answer:

2

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Use rise over run (y2 - y1) / (x2 - x1)

Plug in the points:

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6 0
3 years ago
Jane and Jill both love to collect books. Jane has twice as many books as Jill. Together, they have a total of 216 books in thei
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Answer:

144

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5 0
4 years ago
Which expression is equivalent to (-1.3x-4.5) - (-2.1x+3.6)?
timurjin [86]

Equivalent expressions are expressions with the same value.

The equivalent expression of (-1.3x - 4.5)- (-2.1x + 3.6) is 0.8x -8.1

Given that:

(-1.3x - 4.5)- (-2.1x + 3.6)

Open brackets

(-1.3x - 4.5)- (-2.1x + 3.6) = -1.3x - 4.5+ 2.1x - 3.6

Collect like terms

(-1.3x - 4.5)- (-2.1x + 3.6) = -1.3x + 2.1x - 4.5 - 3.6

(-1.3x - 4.5)- (-2.1x + 3.6) = 0.8x -8.1

Hence, the equivalent of (-1.3x - 4.5)- (-2.1x + 3.6) is 0.8x -8.1

Read more about equivalent expressions at:

brainly.com/question/18257981

6 0
3 years ago
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