PLEASE DO THIS..............

Mathematics

1 answer:

DochEvi [55]3 years ago

6 0

Let x and y be the price of the fridge and the freezer before the sale, respectively.

Since the sale offers 15% off everything, Kristianne actually paid the remaining 85%

$\dfrac{85}{100}(x+y) = \dfrac{17}{20}(x+y) = 357$

We are given that the freezer costed 250 before the sale, i.e. y=250. Plug this value in the equation to get

$\dfrac{17}{20}(x+250) = 357$

We can manipulate this expression to get

$\dfrac{17}{20}(x+250) = 357 \iff x+250=357\cdot\dfrac{20}{17}\iff x+250=420\iff x=170$

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What is the value of x?

Karo-lina-s [1.5K]

To calculate the value of x, you can apply:

Tan(α)=Opposite leg/Adjacent leg

In this case, the opposite leg is "x", and the adjacent leg is 15. The angle α is 30° (α=30°)

When we substitute this values, we obtain:

Tan(α)=Opposite leg/Adjacent leg
Tan(30°)=x/15
x=(15)(Tan(30°))
x=5√3

<span>What is the value of x?
</span>
The answer is: The value of x is 5√3

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3 years ago

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a_sh-v [17]

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