On the blueprint of a house, 28 millimeters represents 6 meters. The actual length of the living room is 9 meters. What is its length on the blueprint?

Answers

Answer 1

Answer:

The length on the blueprint is 42 mm.

What is Scale Factor?

Scale factor is a number by which the size of any geometrical figure or shape can be changed with respect to its original size. It is used to draw the enlarged or reduced shape of any given figure and to find the missing length, area, or volume of an enlarged or reduced figure. It should be noted that the scale factor helps in changing the size of the figure and not its shape.

We have,

On the blueprint of a house, 28 millimeters represents 6 meters.

The actual length of the living room is 9 meters.

Then, 6 meter represents

= 28/6

= 14/3

So, the length of living rooms

= 9 x 14/3

= 42 mm

Learn more about Scale Factor here:

brainly.com/question/30215119

#SPJ1

Answer 2

Answer: You could create a ratio.

final answer would be 42

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The garage door is 15 feet wide and 6 feet high. It's painted white except for a rectangular panel 1 foot high and 9 feet wide that is brown. How much of the garage door is white

Answers

Answer:

The garage door that is white is:

81 sq feet

Step-by-step explanation:

The garage door is 15 feet wide and 6 feet high.

Area of the door=15×6

= 90 sq feet

A rectangular panel 1 foot high and 9 feet wide is brown.

Area that is brown=1×9

= 9 sq feet

Area that is white=90-9

=81 sq feet

15 x 6 = 90
1 x 9 = 9

90-9=81feet²

Please help me with my Algebra What is the solution to the system of equations? 3x−y−z=82x+y−z=3x−y+z=6 (−3,−4,−13) (2,−1.5,−0.5) (3,3,−2) (3,−1,2)

Answers

Answer:

Step-by-step explanation:

Steve and Ed were comparing how much money they earned in a 9 week period. Steve earned $149.53 each week for three weeks. He then earned twice as much each week for the next six weeks. Ed earned $108.77 for two weeks. He then earned three times as much each week for the next seven weeks. How much more did Ed earn than Steve?

Answers

Steve: 149.53 x 3 = 448.59
299.06 x 6= 2242.95
2242.95 + 448.59 =
$2242.59

Ed: 108.77 x 2 = 217.54
326.31 x 7 = 2284.17
2284.17+ 217.54 = $2501.71

$2501.71 - $2242.95 =
$258.76

Ed earned $258.76 more than Steve.

Write an equation of the line that is:a) parallel to the line y=2x-4, and has a y-intercept of 7
   b) parallel to the line y-3x=6, and has a y-intercept of -2
   c) parallel to the line 2x+3y=12, and that passes through the origin
   d) perpendicular to the line y=3x+2, and has a y-intercept of 2
   e) perpendicular to the line 3y+4x=18, and that passes through the origin

   please answer all these question

Answers

Lines that are parallel will have the same slope. Lines that are perpendicular will have slopes that are the negative reciprocal of each other.

(a) parallel to the line y=2x-4, and has a y-intercept of 7
slope of first line: 2
slope of second line: 2
y=mx + b
y=2x+7

(b) parallel to the line y-3x=6, and has a y-intercept of -2
y=3x+6
slope of first line: 3
slope of second line: 3
y=mx + b
y=3x-2

(c) parallel to the line 2x+3y=12, and that passes through the origin
3y=-2x+12
y=-2/3x+4
slope of first line: -2/3
slope of second line: -2/3
origin: (0,0)
y=mx + b
y=-2/3x + 0
y=-2/3x

(d) perpendicular to the line y=3x+2, and has a y-intercept of 2
slope of first line: 3
slope of second line: -1/3
y=mx + b
y=-1/3x + 2

(e) perpendicular to the line 3y+4x=18, and that passes through the origin
3y=4x+18
y=4/3x+6
slope of first line: 4/3
slope of second line: -3/4
origin: (0,0)
y=mx + b
y=-3/4x + 0
y=-3/4x

How to factor 9x^2+5x-12

Answers

Hi Stacey

9x^2+5x-12

Answer : Doesn't factor

I hope that's help and please if you have questions you can ask me !

Last question of the day for 20 points :)

Answers

When x=0, y=4...

Therefore:

4=a*b⁰

b⁰=1, so a=4.

----------

When x=1, y=2...

Therefore:

2=4*b¹

4b=2

b=2/4

So... b=1/2.

This means that:

y=4*((1/2)^x)

Answer:

When x=0, y=4...

Therefore:

4=a*b⁰

b⁰=1, so a=4.

----------

When x=1, y=2...

Therefore:

2=4*b¹

4b=2

b=2/4

So... b=1/2.