2 years ago

The Picture and Sound electronics store has hired Kiara to work in the

Mathematics

1 answer:

olya-2409 [2.1K]2 years ago

7 0

9514 1404 393

Answer:

y = 3/4x

Step-by-step explanation:

The equation of a proportional relation is ...

y = kx

The value of k can be found by dividing by x:

y/x = k

For the given values, we find k to be ...

k = y/x = (3 ft)/(4 turns) = 3/4 ft/turn

The relationship can be written ...

y = 3/4x

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What is a solution to (x + 6)(x + 2) = 60?

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Solution of the equation $(x+6)(x+2)=60$ is x=4 and x=-12

Step-by-step explanation:

We need to solve the equation: $(x+6)(x+2)=60$

Solving:

$(x+6)(x+2)=60$

Multiplying terms on the left hand side

$x(x+2)+6(x+2)=60$

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$x^2+8x+12=60$

$x^2+8x+12-60=0$

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Now factorizing:

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$(x-4)(x+12)=0$

$(x-4)=0\,\,and\,\,(x+12)=0$

$x=4\,\,and\,\,x=-12$

So, solution of the equation $(x+6)(x+2)=60$ is x=4 and x=-12

Keywords: Solving Equations

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