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vazorg [7]
3 years ago
7

a stereo is marked down $75. If this is a 15% decrease find the sale price. How do you work this problem out?

Mathematics
2 answers:
m_a_m_a [10]3 years ago
8 0
You can do a proportion: 75/15 = x/100
you then do 100x75 and the divide by 15 and get 500. 
15% of $500 is $75 so the sale price would be $425 I believe. 
Nadusha1986 [10]3 years ago
5 0

Answer:

The selling price is $425.

Step-by-step explanation:

Given information:

Marked down price = $75

15% decrease = $75

Let x be the market price.

x\times \frac{15}{100}=75

0.15x=75

Divide both sides by 0.15.

x=500

The market price is $500.

Selling price = Market price - Marked down

Selling price = $500 - $75

Selling price = $425

Therefore, the selling price is $425.

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My interpretation of your math expression is "2  1/2 divided by 1/3."

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Parsons Bank offers two​ checking-account plans. The No Frills plan charges
7nadin3 [17]

If the number of checks are greater than 25, the Simple Checking plan cost​ less.

We have two checking account plans at Parson's bank.

We have to determine for what number of checks per month will the Simple Checking plan cost​ less.

<h3>What is an Inequality in Mathematics ?</h3>

An inequality is a relation which makes a non-equal comparison between two numbers or other mathematical expressions.

Let for x number of checks per month the simple checking plan cost less.

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To solve more questions on Inequalities, visit the link below-

brainly.com/question/4916892

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