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3 years ago

If a Play Station was bought for $450 after a 10% discount what was the original price of the Play Station?

1 answer:

7 0

If it was bought after 10% discount, it means it was bought at 90% of the original price:
90% = $450
1% = $5
100% = $5 x 100
100% = $500

The original price of the Play Station was $500.

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Calculate the volume HELP PLEASE ASAP

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2 years ago

What is the total weight, w, of 5 bags of soil?

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3 years ago

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viktelen [127]

Answer:

A = 5
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3 0

3 years ago

Read 2 more answers

Suppose that the probabilities of a customer purchasing 0, 1, or 2 books at a book store are 0.2, 0.3, and 0.5, respectively

svetlana [45]

Answer:

Expectation number of books a customer will purchase = 1.3

Step-by-step explanation:

x : 0 1 2

p(x) :0.2, 0.3, and 0.5

Expectation

E(X) = ∑x P(x)

= 0 X 0.2 +1 X 0.3+ 2 X 0.5

= 1.3

Expectation E(X) = 1.3

Expectation number of books a customer will purchase = 1.3

3 0

3 years ago

Which value, to the nearest tenth, is the smallest solution of f(x) = g(x) if f(x) = ln(x + 5) – 1 and g(x) = x3 – 2x + 1?

nekit [7.7K]

Answer:

There are two possibilities of determine which solution is the smallest one:

(i) The smallest solution is the value of $x$ has the smallest distance with respect to origin: $(x_{2},y_{2}) = (0.18,0)$

(ii) The smallest solution is the most negative value: $(x_{1},y_{1}) = (-1.577,0)$

Step-by-step explanation:

Let $f(x) = g(x)$ , $f(x) = \ln (x+5)-1$ and $g(x) = x^{3}-2\cdot x + 1$ , then we have the following implicit equation:

$\ln (x+5)-x^{3}+2\cdot x -2 = 0$ (1)

This equation cannot be solved by analytical means. There are two different strategies to solve this expression: (i) Numerical methods, (ii) Graphical methods. We decide to use the second method:

Let suppose that we use this function $h(x) = \ln (x+5) -x^{3}+2\cdot x - 2$ . By the help of a graphing tool, we find the smallest solution such that $h(x) = 0$ . There are three possible solutions: $(x_{1},y_{1}) = (-1.577,0)$ , $(x_{2},y_{2}) = (0.18,0)$ , $(x_{3}, y_{3}) = (1.376, 0)$

There are two possibilities of determine which solution is the smallest one:

(i) The smallest solution is the value of $x$ has the smallest distance with respect to origin: $(x_{2},y_{2}) = (0.18,0)$

(ii) The smallest solution is the most negative value: $(x_{1},y_{1}) = (-1.577,0)$

5 0

3 years ago