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2 years ago

Stella wants to buy a remote control helicopter. The one she wants costs $120.

Mathematics

2 answers:

just olya [345]2 years ago

6 0

Answer:

$61.10

Step-by-step explanation:

Original price: $120

50% of 120: $60

(You can either divide $120 in half or do:

120 * 0.50

= 60)

<em>The Helicopter would be $60 at 50% off.</em>

60 * 0.95 (0.95 comes from 1 - 0.05, which is the 5% off)

= 57

Finally, add the tax:

57 * 1.072

= 61.10

aalyn [17]2 years ago

5 0

.45 * 120 = 54

.072 * 54 = 3.888

54 + 3.888 = 57.888= $57.89

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3 years ago

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Step-by-step explanation:

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3 years ago

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((3^3 - 7) • 5)/10 + ((1+3+6+9)-10)

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Answer:

Step-by-step explanation:

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3 years ago

find an equation of the line that bisects the acute angle formed by the graphs of 3x+5y+2=0 and 5x+3y-2=0

Aleks [24]

Answer:

x+ y = 0

and

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Step-by-step explanation:

given line

3x+5y+2=0

5x+3y-2=0

solution

when two line bisect each other then line equation of bisector is express as

$\frac{|A1x+B1y+C1|}{\sqrt{A1^2+B1^2+C1^2}} = \frac{|A2x+B2y+C2|}{\sqrt{A2^2+B2^2+C2^2}}$ .........................1

and here

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C1 = 2

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C2 = -2

so now put value in equation 1 we get

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solve it we get

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and

3x+5y+2 = - ( 5x+3y-2 )

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Answer:

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Step-by-step explanation:

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