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a_sh-v [17]
3 years ago
10

Sadie computes the perimeter of a rectangle by adding the length, l, and width, w, and doubling this sum. Eric computes the peri

meter of a rectangle by doubling the length, l, doubling the width, w, and adding the doubled amounts.
Write an equation for Sadie’s way of calculating the
Mathematics
1 answer:
elena-s [515]3 years ago
6 0
I have this same problem
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If 18 plums weigh 54 ounces, then 6 plums weigh how many<br> ounces?
Debora [2.8K]

Answer:

18

Hope this helps :) Please mark this brainiest?

Step-by-step explanation:

18/6=3

54/3=18

8 0
2 years ago
Read 2 more answers
This is due tomorrow, so please help and show step by step​
Softa [21]

Answer:

  • slope = 3/2
  • y-intercept = 3
  • x-intercept = -2

Step-by-step explanation:

The slope is the coefficient of x when the equation is of the form ...

  y = (something).

Here, we can put the equation in that form by subtracting 12x and dividing by the coefficient of y:

  12x -8y = -24 . . . . . given

  -8y = -12x -24 . . . . .subtract 12x

  y = 3/2x +3 . . . . . . . divide by -8

This is the "slope-intercept" form of the equation. Generically, it is written ...

  y = mx + b . . . . . . where m is the slope and b is the y-intercept

So, the above equation answers two of your questions:

  slope = 3/2

  y-intercept = 3

__

The x-intercept is found fairly easily from the original equation by setting y=0:

  12x = -24

  x = -24/12 = -2 . . . . . the x-intercept

_____

A graph of the equation can also show you these things. The graph shows a rise of 3 units for a run of 2, so the slope is rise/run = 3/2. The line crosses the axes at x=-2 and y=3, the intercepts.

8 0
3 years ago
What is the solution to the equation 3/5n - 4/5 = 1/5n?
antiseptic1488 [7]

Answer: 2

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
Please help me! thanks!
maw [93]
The second bubble is the correct answer i believe...
7 0
3 years ago
Read 2 more answers
Y=2x+7 <br><br> 3x-y=-9<br><br> Solve each system of equation by the substitution method.
givi [52]
Plug in the first equation into the he second equation

3x-(2x+7)=-9
3x-2x-7=-9
x-7=-9
x=-2

plug in x=-2 into the first equation

y=2(-2)+7
y=-4+7
y=3

answer: (-2,3)
4 0
3 years ago
Read 2 more answers
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