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beks73 [17]
3 years ago
14

A man pays only $60 for an item which originally sells for $100. What percent of the original price does the man pay for the ite

m?
Mathematics
2 answers:
-BARSIC- [3]3 years ago
5 0

Answer:

60 percent

Step-by-step explanation:

A man pays $60 for an item that originally sells for $100

% of original price paid for

=amount paid/original amount x 100%

That is $60/$100 x 100%

0.6 x 100% = 60%

Anni [7]3 years ago
4 0
Answer: 40%. Alternatively, you can think about it this way. The item is 40% off. This means you'll pay 60.000% of the total cost (100% - 40% = 60.000%).
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Write an equation perpendicular to y=5/2x-3 and through (4,2).
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Y=-4/2x-3 that should be a correct answer
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3 years ago
Which equation represents the line that is perpendicular to graph of 4x+3y=9 and passes through (-2,3)
goldfiish [28.3K]

4y = 3x + 18

Step-by-step explanation:

NOTE THAT A line that is perpendicular to another has a negative inverse of the slope of the other line. The products of their slopes, that is, is always -1

Therefore we can begin by finding the slope of this line defined by the function 4x+3y=9

3y = -4x + 9

y = -4/3 x + 9/3

y = -4/3 x + 3

The slope of the  perpendicular line is, therefore;

¾  - this is the negative inverse of -4/3

Now that we know the slope, we need to find the y-intercept. This is where x = 0 and the line meets the y-axis;

i.e (0, y)

The other given point, where the line crosses  is (-2, 3). Remember that to get the gradient we use the formula;

Gradient = Δ y / Δ x

¾ = (3 – y) / (-2 – 0)

¾ = (3 –y) / -2  

¾ * -2 = 3 – y

-3/2 = 3 – y

-3/2 – 3 = -y

9/2 = y           ←– This is the y-intercept

Remember the function of a straight line is given;

y = mx + c (m being slope and c being y-intercept)

y = 3/4 x + 9/2

4y = 3x + 18

Learn More:

brainly.com/question/2783474

brainly.com/question/14148974

#LearnWithBrainly

6 0
3 years ago
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You are skateboarding at a pace of 30 meters every 5 seconds. your friend is in-line skating at a pace of 9 meters every 2 secon
AnnyKZ [126]

In order to graph the relationship, we will need to write the expression as the equation of a straight line as shown:

d = mt + b

d is the distance covered

t is the time taken

m is the speed

If you are skateboarding at a pace of 30 meters every 5 seconds. your friend is in-line skating at a pace of 9 meters every 2 seconds, this can be written as (5, 30) and (2, 9)

Get the slope of the line:

m = (9-30)/(2-5)

m = -21/-3

m = 7

Substitute m = 7 and the coordinate (2, 9) into the equation y = mt + b

9 = 7(2) + b

9 = 14 + b

b = -5

The required equation to plot will be expressed as y = 7t - 5

Plot the required graph

Learn more here: brainly.com/question/17003809

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2 years ago
Sam has 12 black and white photos and 18 color photos. He wants to put the photos in equal rows so each row has either black and
elena-s [515]

12 black and white, 18 color in one row
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8 0
3 years ago
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Y-1=-2(x+3) in standard form
romanna [79]

Answer:

2x + y + 5 = 0

Step-by-step explanation:

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y − 1 = -2x − 6

2x + y + 5 = 0

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3 years ago
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