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Advocard [28]
3 years ago
11

Rectangle A has the length 12 and a width 8 rectangle B has length 15 and width 10. Is rectangle A and scaled copy of B if so wh

at is the scale factor?
Mathematics
1 answer:
Alenkinab [10]3 years ago
8 0

Answer:

  • yes
  • 4/5

Step-by-step explanation:

The ratio of length to width in each case is ...

 length : width = 12 : 8 = 3 : 2 = 15 : 10

Since the aspect ratio of the rectangles is the same, one could be a scaled copy of the other.

The scale factor of A from B is ...

   A/B = 8/10 = 4/5

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Help with this math picture :) worth 8 points
ipn [44]

Solving for x...
\frac{1}{2} x+ \frac{1}{4} =  \frac{15}{16} 


Times the \frac{1}{2} , both the numerator and denominator, by 8 to get the denominator to 16.
Times the \frac{1}{4} , both the numerator and denominator, by 4 to get the denominator to 16.

Then rewrite the problem, 
\frac{8}{16}x+ \frac{4}{16} =  \frac{15}{16}

now that the denominators are all the same, you can solve...
subtract the \frac{4}{16} from both sides

you should get \frac{8}{16} x =  \frac{11}{16}

Multiply both sides by 16 (it'll cancel both the 16 out making it go away)
     8x = 11

divide each side by 8 to have the x alone

     <u>8x</u> = <u>11
</u>      8      8 
<u>
</u> You should end with x = \frac{11}{8} or 1.375<u>
</u>
3 0
3 years ago
Which expression can be used to find the surface area of the following rectangular prism?
sergeinik [125]

Answer:

It would be C.

Step-by-step explanation:

4 0
4 years ago
Find the Value of X
Elina [12.6K]

Answer:

total \: angle = 180 \\ 5x + 1 + x + 11 = 180 \\ 6x + 12 = 180 \\ 6x = 180 - 12 \\ 6x = 168 \\ x =  \frac{168}{6}  = 28 \\ thank \: you

4 0
3 years ago
Is x = -7, the solution to -11 + 2x = -26? Justify your answer in complete sentences.
Natali5045456 [20]
First of all, you can move the +2x to the other side:
-11 = -26 - 2x

Then you can move the -26 to the other side and then simplify:
-11+26 = -2x
 15 = -2x

Then you can divide both sides by 2:
7.5 = -x

Then you can flip the sides and the signs around:
x = -7.5

No, The answer is not -7, it is -7.5
Hope this helps! :)
4 0
3 years ago
A quadrilateral has angles that measure 125°, 115°, and 65°.
Luba_88 [7]
The answer is 11 degrees 
6 0
3 years ago
Read 2 more answers
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