What is X? in this problem

Mathematics

1 answer:

BaLLatris [955]4 years ago

6 0

Answer:

which problem

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Jose Mendez bought 200 shares of stock at a quotation of 24.5. The brokerage fee was $139. What was the total cost?

Leni [432]

For this case we have that the total cost is:
C = (shares) * (quotation) + (brokerage fee)
Substitute the values we have:
C = (200) * (24.5) + (139)
C = 4900 + 139
C = 5039 $
Answer:
the total cost was:
C = 5039 $

8 0

3 years ago

3.) If y varies directly as x and y = 24 when x = 6, find the variation constant and the equation of variation.

Talja [164]

<h2><u>Problem</u>:-</h2>

3.) If y varies directly as x and y = 24 when x = 6, find the variation constant and the equation of variation.

<h2><u>Solution</u>:-</h2>

A. Express the statement “y varies directly as x”, as y = kx .

B. Solve for k by substituting the given values in the equation.

$\sf\rightarrow{y = kx}$

$\sf\rightarrow{24 = 6k}$

$\sf\rightarrow{K = \frac{24}{6} }$

$\sf\rightarrow{K={\color{magenta}{4}}}$

<h2><u>Answer</u>:-</h2>

Therefore, the constant of variation is 4.

C. Form the equation of the variation by substituting 4 in the statement y = kx. Thus , <u>y = 4 x.</u>

<u> ${\large{—————————————————————}}$ </u>

#CarryOnMath⸙

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3 years ago

Which situation describes INDEPENDENT events?

Semmy [17]

Answer:

In B, One card is chosen from a standard deck, it is set aside, then a second card is drawn. That "set aside" is where we have a problem. We began with 52 cards, but now have 51. This fact WILL change the probability or probabilities. Chances of obtaining a red heart from the full 52-card deck are 4/52; whereas chances of obtaining a red heart from the remaining 51 cards (assuming that you got a red heart earlier and set it aside) is 3/51.

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3 years ago

What do you add to 2 1/8 to make 4

barxatty [35]

Step-by-step explanation:

Let us add x to $2\frac{1}{8}$ to make 4.

$\therefore \: x + 2 \frac{1}{8} = 4 \\ \\ \therefore \: x + \frac{2 \times 8 + 1}{8} = 4 \\ \\ \therefore \: x + \frac{16 + 1}{8} = 4 \\ \\ \therefore \: x + \frac{17}{8} = 4 \\ \\ \therefore \: x = 4 - \frac{17}{8} \\ \\ \therefore \: x = \frac{4 \times 8 - 17}{8} \\ \\ \therefore \: x = \frac{32- 17}{8} \\ \\ \therefore \: x = \frac{15}{8} \\ \\ \therefore \: x =1 \frac{7}{8} \\ \\ \therefore \:1 \frac{7}{8} \: should \: be \: added \: in \: 2 \frac{1}{8} \: to \: \\ \: \: \: \: \: make \: it \: \: 4.$