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hammer [34]
3 years ago
14

20 points Help!

Mathematics
2 answers:
Afina-wow [57]3 years ago
5 0
2x+8–10=22
2x=24
x=24/2
x=12

yes! you’re absolutely right, i hope i helped you
Gwar [14]3 years ago
4 0
Hello there, and thank you for posting your question here on brainly.

Let's see if x = 12 by working it out as in the equation.

2 * (12 + 4) - 10 = 36 - 14

I know we should use pemdas, but I'm going to do the 36 - 14, and then work on the left side.

36 - 14 = 22

Now, let us work on the equation.

2 * (12 + 4) - 10 = 22

Let's do the parenthesis first.

12 + 4 ===> 16

Now we have the equation 

2 * 16 - 10 = 22

Multiply 16 by 2.

16 * 2 ===> 32

Almost done, we now have the equation

32 - 10 = 22

Do the subtraction.

32 - 10 ===> 22

22 = 22

Yes, x = 12

Hope this helped!! ☺♥
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3 years ago
Solve for b<br> −3b+2.5=4<br> Two step equations with fractions and decimals
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−3b+2.5=4

Subtract 2.5 from both sides.

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−3b=1.5

Divide both sides by -3.

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3 years ago
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Find the width of a rectangle 25 feet and the perimeter is 80​
lukranit [14]

\huge\underline{\red{A}\blue{n}\pink{s}\purple{w}\orange{e}\green{r} -}

  • Given - <u>a </u><u>rectangle </u><u>with </u><u>length</u><u> </u><u>2</u><u>5</u><u> </u><u>feet </u><u>and </u><u>perimeter </u><u>8</u><u>0</u><u> </u><u>feet</u>

  • To calculate - <u>width </u><u>of </u><u>the </u><u>rectangle</u>

We know that ,

\bold{Perimeter \: of \: rectangle = 2(l + b)} \\

where <u>b </u><u>=</u><u> </u><u>width </u><u>/</u><u> </u><u>breadth</u> of rectangle

‎ ‎ ‎

<u>substituting</u><u> </u><u>the </u><u>values </u><u>in </u><u>the </u><u>formula </u><u>stated </u><u>above </u><u>,</u>

\bold{80  = 2(25 + b)} \\  \\\bold{ \implies \: 25 + b = \cancel \frac{80}{2} } \\  \\ \bold{\implies \: 25 + b = 40 }\\  \\ \bold{\implies \: b = 40 - 25 }\\  \\\bold{ \implies \: b = 15 \: feet}

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Ivahew [28]

Answer:

No

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6^2+4^2=52

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