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saul85 [17]
3 years ago
12

The same style blanket in size B has width 2x + 10 and length 4x - 10. Write a polynomial

Mathematics
1 answer:
Umnica [9.8K]3 years ago
5 0

Answer:A=8x^2 + 20x - 100

Step-by-step explanation:

The area of rectangle is:

A= length × width

A= (2x+10)(4x-10)

So now expand the bracket8

A=8x^2 - 20x + 40x - 100

A=8x^2 + 20x - 100

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What is the result of increasing 50 by 30%?
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Answer:

50 increased by 30% is 65

Step-by-step explanation:

'Percent (%)' means 'out of one hundred':

p% = p 'out of one hundred',

p% is read p 'percent',

p% = p/100 = p ÷ 100.

30% = 30/100 = 30 ÷ 100 = 0.3.

100% = 100/100 = 100 ÷ 100 = 1.

Percentage increase = 30% × 50

New value = 50 + Percentage increase

Calculate

New value =

50 + Percentage increase =

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(1 + 30%) × 50 =

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130 × 50 ÷ 100 =

6,500 ÷ 100 =

65

Or just find 30% of 50 (15) and add that

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