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vovangra [49]
3 years ago
5

In a sale the price of a shirt is reduced from $45 to $30. Find the percentage decrease

Mathematics
2 answers:
zalisa [80]3 years ago
6 0
The answer is 5% I’m pretty sure. I just subtracted $40-$30 :)
ehidna [41]3 years ago
3 0
If you subtract 45$ from 30$ it would = 15 it would make it 6% lower
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Answer:

n = 8

Step-by-step explanation:

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3n = 4 × 6 = 24 ( divide both sides by 3 )

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2 years ago
How many solutions does this linear system have?
Andrews [41]

Answer:

x = 0 , y = 4

Step-by-step explanation:

Solve the following system:

{y = 4 - 3 x | (equation 1)

x + 2 y = 8 | (equation 2)

Express the system in standard form:

{3 x + y = 4 | (equation 1)

x + 2 y = 8 | (equation 2)

Subtract 1/3 × (equation 1) from equation 2:

{3 x + y = 4 | (equation 1)

0 x+(5 y)/3 = 20/3 | (equation 2)

Multiply equation 2 by 3/5:

{3 x + y = 4 | (equation 1)

0 x+y = 4 | (equation 2)

Subtract equation 2 from equation 1:

{3 x+0 y = 0 | (equation 1)

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Divide equation 1 by 3:

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Collect results:

Answer: {x = 0 , y = 4

8 0
3 years ago
The container sells for 18.95. What is the unit rate in dollars per pack?
RoseWind [281]

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Step-by-step explanation:

6 0
3 years ago
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nalin [4]

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Step-by-step explanation:

Information needed:

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3 0
3 years ago
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adelina 88 [10]

Answer:

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y= -1/2x + 4 =  y = 4

y= -1/2x - 4 = y = -4

y=-2x - 4 = y = -4

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Step-by-step explanation:

(x + 2y = -8 = y = -4 - 1/2x)

x+2y=-8\\2y=-8-x\\y=-4-\frac{1}{2}x\\

4 0
3 years ago
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