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kirill [66]
4 years ago
15

From September 1981 to September 1984 the enrollment at a particular school declined to 11%. If the number of students enrolled

at that school in September 1984 was 712 what was the enrollment in September 1981?
a) 78 b) 634 c) 701
d) 790 e)800
Mathematics
1 answer:
LenaWriter [7]4 years ago
4 0
634, you have to multiply it by 89% of the original number, 712, to deduct 11%


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Answer:

m = -1, c = 2

Step-by-step explanation:

if A ( 3, 5) and B (1, 4) lie on the graph of the line mx + cy = 7, then their coordinates satisfy the equation of the line:

A: 3m+5c=7

B: m+4c=7

From the second equation:

m=7-4c

Substitute it into the first equation:

3(7-4c)+5c=7\\ \\21-12c+5c=7\\ \\-12c+5c=7-21\\ \\-7c=-14\\ \\c=2\\ \\m=7-4\cdot 2=7-8=-1

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3 years ago
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Step-by-step explanation:

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7 0
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Westkost [7]

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Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
2. Ramone and his wife had $72,380.90 in combined gross income in 2010. They had $8,295.00 in various adjustments and deductions
MAVERICK [17]
Let x = taxable income = difference of gross income and deductions T = income tax paid = amount sent to the government Use the "filing jointly" chart on the right side. You'll use the second row of that chart since subtracting $72,380.90-$8,295.00 leads to a value between 16750 and 68000. That second row turns into this equation T=1675+0.15(x-16750<span>) w</span>here <span>16750<x≤68000</span>
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3 years ago
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WINSTONCH [101]

Answer:

slope = \frac{11}{3}

Step-by-step explanation:

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m = (y₂ - y₁ ) / (x₂ - x₁ )

with (x₁, y₁ ) = (5, 4) and (x₂, y₂ ) = (2, - 7)

m = \frac{-7-4}{2-5} = \frac{-11}{-3} = \frac{11}{3}

7 0
3 years ago
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