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V125BC [204]
2 years ago
14

Equation, an identity, or a contradiction. 7v+42=11(3v+8)−2(13v−1)

Mathematics
2 answers:
umka2103 [35]2 years ago
3 0

Answer:

48

Step-by-step explanation:

7x+42=11(3x+8)−2(13x−1)

Step 1: Simplify both sides of the equation.

7x+42=11(3x+8)−2(13x−1)

7x+42=(11)(3x)+(11)(8)+(−2)(13x)+(−2)(−1)(Distribute)

7x+42=33x+88+−26x+2

7x+42=(33x+−26x)+(88+2)(Combine Like Terms)

7x+42=7x+90

7x+42=7x+90

Step 2: Subtract 7x from both sides.

7x+42−7x=7x+90−7x

42=90

Step 3: Subtract 42 from both sides.

42−42=90−42

0=48

Sav [38]2 years ago
3 0

Answer: contradiction

Step-by-step explanation:

7v+42=11(3v+8)-2(13v-1)

Open the bracket

7v+42=33v+88-26v+2

7v+42=33v-26v+88+2

7v+42=7v+90

Collect like term

7v-7v=90-42

0=48

This shows that

7v+42=7v+90 contradict

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The perimeter of a rectangular campsite is 64 cm and its area is 207 cm. Find the length and the breadth of the rectangle.
AlladinOne [14]
Perimeter Formula:
2l + 2b = 64


Area Formula:
l \times b = 207
Set perimeter Formula equal to b:
2l + 2b = 64 \\ 2(l + b) = 64 \\  l+ b = 32 \\ b = 32 - l
Plug formula for be we just made above into the area Formula:
(32 - l) \times l = 207


Solve for L (you'll have to use quadratic formula) then plug that back into the area Equation and solve for b.

Here's a link to where the problem has been explained before (they go into more detail than me).

https://brainly.ph/question/468631

lmk if you need any more help
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Step-by-step explanation:

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ycow [4]
It’s c because I got it right on the test
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PLEASE HELP THIS IS DUE SOON <33
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