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Pie
3 years ago
5

Simplify the expression -3x+5y-2+7x-8y+5

Mathematics
1 answer:
Natasha2012 [34]3 years ago
8 0
To simplify this expression we need, at first, to find like terms.

<span>-3x+5y-2+7x-8y</span><span>-3x+5 = (</span>-3x+7x)+ (5y-8y)  -2+5 = 4x + 3y +3

4x + 3y +3 is the answer.
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Hours Worked vs Salary hours worked-left salary-right
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Answer:

for every ten hours there is an extra 300 dollars.

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2 years ago
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Daniel bought 3 sweaters that each cost the same amount and a jacket that cost $40. The items he bought cost a total of $100 bef
MA_775_DIABLO [31]
3x+40=100


subtract 40 from both sides

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2 years ago
2. The seventh grade class is putting on a variety show to raise
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Answer:

67

Step-by-step explanation:

15 x 10 = 150

150 x 6 = 900

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3 years ago
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Identify the first 4 terms in the geometric sequence given by the explicit formula ƒ(n) = 4 × 2(n – 1).
saw5 [17]

Step-by-step explanation:

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4 0
3 years ago
The manager of a store orders model railroad sets that cost $390 and sells them for $429. What is the mark-up, as a percentage?
Katarina [22]

Answer:

10%

Step-by-step explanation:

We have been given that the manager of a store orders model railroad sets that cost $390 and sells them for $429.  

We will use markup % formula for our given problem.

\text{Markup percentage}=\frac{\text{Selling price- Cost}}{\text{Cost}}\times 100

\text{Markup percentage}=\frac{429-390}{390}\times 100

\text{Markup percentage}=\frac{39}{390}\times 100

\text{Markup percentage}=\frac{1}{10}\times 100

\text{Markup percentage}=10

Therefore, markup is 10% of cost.

4 0
3 years ago
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