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ivann1987 [24]
3 years ago
6

Please help me! Solve the system of linear equations by substitution y = 3x - 3

Mathematics
1 answer:
AURORKA [14]3 years ago
6 0
ANSWER:
It’s “y=6”

:)
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The length of a rectangular building is 4 feet more than 3 times the width. The perimeter is 84 feet. Find the width and length
Rus_ich [418]

Answer:

Width=9.5, Length=32.5

Step-by-step explanation:

Let x be the width of the rectangle,

The length is 4 feet more than 3 times the width,

The length= 3x+4

The perimeter is

2(x)+2(3x+4)=84

2x+6x+8=84

8x=76

x=76/8

x=9.5

The Width=9.5

Length= 3(9.5)+4=32.5

4 0
3 years ago
A rectangle that is 6 feet by 9 feet has been scaled by a factor of 1/3.
OleMash [197]

The side lengths of the scaled copy are 2 feet by 3 feet and  to scale the copy back to its original size, the scale factor to use is 3

<h3>1. What are the side lengths of the scaled copy? feet by feet</h3>

The given parameters are:

Length = 6 feet

Width = 9 feet

The scale factor is given as:

k = 1/3

So, the side lengths of the scaled copy are

Length = 1/3 * 6 feet = 2 feet

Width  = 1/3 * 9 feet = 3 feet

Hence, the side lengths of the scaled copy are 2 feet by 3 feet

<h3>2. Suppose you want to scale the copy back to its original size. What scale factor should you use?</h3>

In (1), we have:

The scale factor is given as:

k = 1/3

To scale the copy back to its original size, the scale factor to use is:

Scale = 1/(1/3)

Evaluate

Scale = 3

Hence, to scale the copy back to its original size, the scale factor to use is 3

Read more about scale factors at:

brainly.com/question/10253650

#SPJ1

6 0
2 years ago
If the area of the larger circle is 25 times the area of the smaller circle then the radius of the larger circle is how many tim
Anna007 [38]
25 times shorter than the bigger circle?
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3 years ago
Evaluate x2y for x = -3 and y = 2
padilas [110]
-3*2*2 = - 12
Multiply all to get the answer
8 0
4 years ago
Given the graph of a function f(x). What is f(-4)?
TEA [102]

Answer:

f (k)

Step-by-step explanation:

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3 years ago
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