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2 years ago

3x + fraction 1 over 4 y^2 what is the value expression above when x=3 and y=4? Must show all work and calculations

Mathematics

1 answer:

evablogger [386]2 years ago

7 0

Answer: 9 1/16

nine and one sixteenth

Step-by-step explanation:

Substitute x = 3 and y = 4 into the equation:

3x + 1/4^y

= 3(3) + 1/4^(2)

Then solve using the order BEDMAS (brackets, exponenets, division, multiplication, addition, subtraction).

= 3(3) + 1/4^(2)

= 3(3) + 1/16

= 9 + 1/16

= 9 1/16

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Answer:

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Step-by-step explanation:

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2 years ago

A store manager paid $95 for an item and set the selling price at $116.85. What was the percent markup?

Neporo4naja [7]

We have been given that a store manager paid $95 for an item and set the selling price at $116.85. We are asked to find the percent mark-up.

We will use percent increase formula to solve our given problem.

$\text{Percent increase}=\frac{\text{Final}-\text{Initial}}{\text{Initial}}\times 100\%$

$\text{Percent increase}=\frac{\$116.85-\$95}{\$95}\times 100\%$

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$\text{Percent increase}=0.23\times 100\%$

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Therefore, the mark-up will be 23% and option 'b' is the correct choice.

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