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PtichkaEL [24]
3 years ago
9

An item is regularly priced at $40. Aldo bought it on sale for 85% off the regular price. How much did Aldo pay?

Mathematics
2 answers:
yanalaym [24]3 years ago
4 0
They paid 34.00. 40.00 x .85= 34.00
Kazeer [188]3 years ago
3 0
40 x 85% = 34

40-34= 6

Your answer is $6
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how do you select a month of the year at random what is the probability that the month ends with the ER
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Are the length of a side of a square and the perimeter of the square related proportionally? Why or why not?
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Yes it is because 4 times the length of a side of a square equals to the perimeter of the square

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3 0
3 years ago
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prohojiy [21]
-(5y) - y = 18
-6y = 18
y = -3
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3 0
3 years ago
What value of cc​ will complete the square below and make the expression a perfect square trinomial?
Sav [38]

Question: What value of c​ will complete the square below (x^{2} +30x+c) and make the expression a perfect square trinomial?

Answer: c = 225

Step-by-step explanation:

Perfect square trinomials come in the form a² + 2ab + b², which is equal to (a + b)². In the presented trinomial, we can immediately identify that <u>a = x, and b² = c</u>, but we need to find the numerical value of c.

To do this, note that the middle term, or <u>2ab, corresponds with (is equal to) 30x</u>. We know that a = x, and thus, <u>2ab = 2bx</u>. Now, 2bx and 30x are corresponding terms; thus, <u>2bx = 30x</u>.

Dividing by 2x on both sides gives us <u>b = 15</u>. Therefore, c = b² = 15² = 225. (As a squared binomial, this would be (x + 15)² as a = x and b = 15.)

4 0
1 year ago
A sound wave travels through iron at a rate of 5120\,\dfrac{\text{m}}{\text{s}}5120
Jet001 [13]

The rate at which the sound travels in km/hr is 0.142km/hr

<h3>Conversion of m/s to km/hr</h3>

If a sound wave travels with a speed of 5120m/s, in order to convert to km/he, we will use the conversion factor below;

1hr = 3600secs

1km = 1000m

Using the conversion factor in our dimensional analysis

5120m/s = 5120m/1s * 1km/1000m * 3600s/1hr

5120m/s  = 5120m/3600000

5120m/s = 0.142km/hr

Hence the rate at which the sound travels in km/hr is 0.142km/hr

learn more on dimensional analysis here: brainly.com/question/21510595

#SPJ1

6 0
2 years ago
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