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kherson [118]
2 years ago
9

The price (p) of an item is marked down 20%. Write two expression that represent the sale price.

Mathematics
1 answer:
Fiesta28 [93]2 years ago
4 0

Answer:

So I would say any one of the following:

(1-.2)p

p-.2p

.8p

Step-by-step explanation:

If you start with price p and you are getting it marked down 20%, then you are paying (100-20)%p.

So you have:

(1-.2)p

or if you use distributive property:

1(p)-.2(p)

p-.2p

or if you combine the like terms:

.8p

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Write the equation of the line for the following table of values.
Luda [366]

Answer:

We conclude that the equation of the line is:

  • y = 5x + 1

Step-by-step explanation:

The slope-intercept form of the line equation

y = mx+b

where

  • m is the slope
  • b is the y-intercept

Given the data table

x      -3 -5 -7 -9 -11

y      -16 -26 -36 -46 -56

From the table taking two points

  • (-3, -16)
  • (-5, -26)

Determining the slope between (-3, -16) and (-5, -26)

\mathrm{Slope}=\frac{y_2-y_1}{x_2-x_1}

\left(x_1,\:y_1\right)=\left(-3,\:-16\right),\:\left(x_2,\:y_2\right)=\left(-5,\:-26\right)

m=\frac{-26-\left(-16\right)}{-5-\left(-3\right)}

m=5

Thus, the slope of the line is:  m = 5

substituting m = 5 and (-3, -16) in the slope-intercept form of the line equation  to determine the y-intercept b

y = mx+b

-16 = 5(-3) + b

-16 = -15 + b

b = -16+15

b = 1

Thus, the y-intercept b = 1

now substituting m = 5 and b = 1 in the slope-intercept form of the line equation

y = mx+b

y = 5x + 1

Therefore, we conclude that the equation of the line is:

  • y = 5x + 1
5 0
3 years ago
Someone please help me ✨
DedPeter [7]

Okay, so keeping mind that the equation for area is A = L x W, look at the measurements you already have. 5.5 x 10^5 is the length, and 4.2 x 10^4 is the width. Switch them into full form and use a calculator to multiply the two for the area in meters.

550000 x 42000 = 23100000000, which in scientific form is 2.31 × 10^10. So that's answer one.

For the second, in kilometers, just take the full measurement you already have, 23100000000 m, transfer it into kilometers, 23100000 km, and then find its scientific notation, 2.31 × 10^7. That's answer two.

To answer the last question for which is more suitable, just consider what number you'd prefer to look at: a bigger number or a smaller one. Since the kilometer measurement number is smaller, its correct.

Summarily, the answers are 2.31 × 10^10, 2.31 × 10^7, and square kilometers, in that order.

6 0
2 years ago
What is the value of 5 1/3 ​ - 4 12<br> Help
PIT_PIT [208]
4 < 5 < 12
4 is less than 5 is less than 12
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7 0
2 years ago
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What percent is equivalent to 12/30 ?<br><br> 12%<br> 30%<br> 40%<br> 60%
laila [671]
12/30 is = 0.4 x 100 = 40% can I have brainliest if its right?
4 0
3 years ago
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What is 1,099 rounded to the nearest ten
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1,099= 1,100

HOPE THIS HELPS!!!
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