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Kruka [31]
3 years ago
7

in 1995, there were 12,000 students at Beacon High. In 2000, there were 12,250. What is the rate of change in the number of stud

ents
Mathematics
1 answer:
Masteriza [31]3 years ago
4 0

Answer:

Rate of change = 2.08%

Step-by-step explanation:

In 1995, 12,000 students

In 2000, 12,250 students

Rate of change = ((12,250 - 12,000)/12,000) × 100 .

= 250/12,000 × 100 = 2.08%

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n = 0

Step-by-step explanation:

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3 years ago
The first discount on a camera was 18%. The second discount was 20%. After these two discounts the price was $328. What was the
Artyom0805 [142]

Answer:

$500

Step-by-step explanation:

We can find the original price of the camera through a proportion. A proportion is an equation where two ratios or fractions are equal. The ratios or fractions compare like quantities.

<u>Second Discount</u>

20% off means we paid 80%. We know we paid $328 of some price.

\frac{80}{100} =\frac{328}{y}

I can now cross-multiply by multiplying numerator and denominator from each ratio.

80y=100(328)\\80y=32800

I now solve for y by dividing by 80.

\frac{80y}{80} =\frac{32800}{80} \\y= $410

The price after the first discount was $410.

<u>First Discount</u>

We will repeat the steps above with $410. 18% off means we paid 82%.

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I can now cross-multiply by multiplying numerator and denominator from each ratio.

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I now solve for y by dividing by 82.

\frac{82y}{82} =\frac{41000}{82} \\y= $500

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3 years ago
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