Ask question

Ask question

All categories

Free_Kalibri [48]

3 years ago

15

A ball weighs 15 pounds on Earth and 5.7 on Mars. What is the constant proportionality between the weight of an object on Mars a

nd Earth?

1 answer:

Feliz [49]3 years ago

3 0

The object weighs 5.7 pounds on Mars and 15 pounds on Earth.
Our ratio for Mars weight to Earth weight= 5.7:15 = 2.9:5

You might be interested in

Unit 3 homework 6 Gina Wilson

Sonja [21]

Answer:

5) The equation of the straight line is 2 x - y + 1 =0

6) The equation of the straight line is x + y -5 =0

7) The equation of the straight line is 5 x + 6 y - 24 =0

8) The equation of the straight line is x - 4 y -4 =0

9) The equation of the parallel line is 3x + y -19 =0

Step-by-step explanation:

5)

The equation of the straight line is

$y - y_{1} = m ( x - x_{1} )$

Slope of the line

$m = \frac{y_{2}-y_{1} }{x_{2}-x_{1} }$

Given points are (1,3) , ( -3,-5)

$m = \frac{-5-3 }{-3-1 } = \frac{-8}{-4} = 2$

The equation of the straight line is

$y - y_{1} = m ( x - x_{1} )$

$y - 3 = 2 ( x - 1 )$

y = 2x - 2 +3

2 x - y + 1 =0

The equation of the straight line is 2 x - y + 1 =0

6)

The equation of the straight line is

$y - y_{1} = m ( x - x_{1} )$

Slope of the line

$m = \frac{y_{2}-y_{1} }{x_{2}-x_{1} }$

Given points are (1,4) , ( 6,-1)

$m = \frac{-1-(4) }{6-1 } = \frac{-5}{5} = -1$

The equation of the straight line is

$y - y_{1} = m ( x - x_{1} )$

$y - 1 = -1 ( x - 4 )$

y - 1 = - x +4

The equation of the straight line is x + y -5 =0

7)

The equation of the straight line is

$y - y_{1} = m ( x - x_{1} )$

Slope of the line

$m = \frac{y_{2}-y_{1} }{x_{2}-x_{1} }$

Given points are (-12 , 14) , ( 6,-1)

$m = \frac{-1-(14) }{6+12 } = \frac{-15}{18} = \frac{-5}{6}$

$y - 14 = \frac{-5}{6} ( x - (-12) )$

6( y - 14 ) = - 5 ( x +12 )

6 y - 84 = - 5x -60

5 x + 6 y -84 + 60 =0

5 x + 6 y - 24 =0

8)

The equation of the straight line is

$y - y_{1} = m ( x - x_{1} )$

Slope of the line

$m = \frac{y_{2}-y_{1} }{x_{2}-x_{1} }$

Given points are (-4 , -2) , ( 4 , 0)

$m = \frac{0+2}{4 +4} = \frac{2}{8} = \frac{1}{4}$

$y - (-2) =\frac{1}{4} ( x - (-4) )$

4 ( y + 2) = x + 4

x - 4 y -4 =0

9)

The equation of the line y = 3x + 6 is parallel to the line

3x + y + k =0 is passes through the point ( 4,7 )

⇒ 3x + y + k =0

⇒ 12 + 7 + k =0

⇒ k = -19

The equation of the parallel line is 3x + y -19 =0

4 0

3 years ago

What is the answer please

Likurg_2 [28]

Answer:

rhombus = a quadrilateral with four congruent sides

rectangle = a quadrilateral with four right angles

parallelogram = a quadrilateral with two pairs of parallel sides

trapezoid = a quadrilateral with one set of parallel sides

square = a quadrilateral with four right angles and four congruent sides

3 0

3 years ago

I need to know if 3750 is right or wrong cause I think that’s the answer

brilliants [131]

It’s wrong.

The surface area means the area of the outside of the cube.

The area of a square is just width x height. And we are told one of the sides is 5.

A square has all equal sides. So what’s 5x5? then times that by the number of squares

I’ll put the answer in the comments

8 0

3 years ago

Mrs. Walters has 30 Markers. she gives each student 10 markers. how many students received the markers?

Bas_tet [7]

Answer:

3 students would get 10 markers

Step-by-step explanation:

3 0

3 years ago

Read 2 more answers

A gallery owner purchased a very old painting for $3,000. The painting sells at a 325% increase in price. What is the retail pri

BartSMP [9]

The retail price is $9,750.

4 0

3 years ago

Read 2 more answers