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3 years ago

Rob pays $258 every 3 months for his karate lessons. At this rate, how much will Rob pay for 3 years of karate lessons?

2 answers:

6 0

Well first divide 3 years into months and there are 36 months in 3 years, next divide 258 into 3 months and that is 86, next multiply 86 by 36 and you get 3,096

Steps:
3 Years into months is 36
258 Divided by 3 is 86
86 Times 36 is 3,096

Answer $3,096

GREYUIT [131]3 years ago

6 0

If he pays 258 every three month it means that he pays 1034(258x4) every year. Therefore in 3 years he will pay 1034 multiplied by three which is 3096

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Answer:

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Step-by-step explanation:

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2 years ago

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a - length of side of a square

t - length of side of a triangle

The perimeter of a square: $P_S=4a$

The perimeter of a triangle: $P_T=3t$

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The formula of an area of an equilateral trinagle: $A_T=\dfrac{t^2\sqrt3}{4}$

Substitute:

$\dfrac{t^2\sqrt3}{4}=16\sqrt3$ multiply both sides by 4

$t^2\sqrt3=64\sqrt3$ divide both sides by $\sqrt3$

$t^2=64\to t=\sqrt{64}\to t=8\ cm$

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Substitute to the formula of a perimeter of a square:

$4a=24$ divide both sides by 4

$a=6\ cm$

The formula of a diagonal of a square: $d=a\sqrt2$

Substitute:

$d=6\sqrt2\ cm$

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3 years ago

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