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vfiekz [6]
2 years ago
15

An item costs x dollars and then a 20% discount is applied

Mathematics
1 answer:
Marat540 [252]2 years ago
7 0

Answer:

If an item is x dollars and 20% discount is applied, the new price will be: 0.8x

Step-by-step explanation:

100 - 20%(20) = 80

80 = 80% or 0.8

So, the remaining of the price of x will be 0.8x.

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Evaluate the expression for f = -6 and g = -1.<br> fg - f =
Arlecino [84]

Answer:

7

Step-by-step explanation:

Given the information from the question:

fg - f = f \times g - f

Next we can use the order of operations to find the value of the expression.

fg - f =  - 6 \times  - 1 - ( - 1) \\  =  6 - ( - 1) \\  = 6 + 1 \\  = 7

5 0
1 year ago
What is 10.73 in word form
Andrej [43]
Ten and seventy-three hundredths
8 0
3 years ago
A boy is 20 years old at present. How old was he 3 years ago?​
EleoNora [17]

Answer: seven-teen

Step-by-step explanation:twenty minus three

3 0
3 years ago
The slope of a line is -3. Find the slope of a line that is perpendicular to this line.
nataly862011 [7]
<span>The slope of a line is -3
</span><span>perpendicular  lines, slope is opposite and reciprocal
so </span><span>the slope of a line that is perpendicular to this line will be 1/3

answer
</span><span>C.1/3</span>
8 0
3 years ago
What is the least common denominator of the rational expressions below?<br> 1/x^2 - 4/3x^2+15x
vladimir1956 [14]

Answer:

The LCD is 3x²

The other two denominators can be factors of 3x²

Step-by-step explanation:

To get the equivalent fractions, divide the original denominator into the LCD, then multiply the original numerator by the quotient.

For the first term: 1/x²

3x² ÷ x² = 3 3×1=3 The equivalent is 3/3x²

Second term: Leave it as it is.

For the third term: 15x

The implied denominator is 1

3x² ÷ 1 = 3x² 3x² × 15 = 135x²

The equivalent is 135x²/3x²

<em>To </em><em>check</em><em> </em><em>the </em><em>validity</em><em>,</em><em> </em><em>substitute</em><em> </em><em>a </em><em>value</em><em> </em><em>for</em><em> </em><em>x </em><em>and </em><em>calculate</em><em> </em><em>the</em><em> </em><em>numbers</em><em>.</em>

<em>For</em><em> </em><em>example</em><em> </em><em>let </em><em>x </em><em>=</em><em> </em><em>3</em>

<em>The </em><em>original</em><em> </em><em>expression</em><em> </em><em>becomes</em><em> </em>

<em>1/3² + 4/3(3²) - 15(3)</em>

<em>1</em><em>/</em><em>9</em><em> </em><em>+</em><em> </em><em>4</em><em>/</em><em>2</em><em>7</em><em> </em><em>-</em><em> </em><em>4</em><em>5</em>

<em>With</em><em> </em><em>the</em><em> </em><em>LCD </em><em>it </em><em>is</em>

<em>3</em><em>/</em><em>2</em><em>7</em><em> </em><em>+</em><em> </em><em>4</em><em>/</em><em>2</em><em>7</em><em> </em><em>-</em><em> </em><em>1</em><em>2</em><em>1</em><em>5</em><em>/</em><em>2</em><em>7</em>

5 0
3 years ago
Read 2 more answers
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