Ask question

Ask question

All categories

3 years ago

6

A student solved the equation 2x+6=12 using algebra tiles. incorrectly says the solution is 9. Solve the equation. What mistake

might the student have made? btw giving brainliest!

1 answer:

alexdok [17]3 years ago

8 0

Instead of subtracting 6 from 12 then dividing they added 6 to 12 & ended up with 18. 18 by 2 is 9.

You might be interested in

Consider this sequence

pochemuha

Hello,

$u_{1} =1*(8-7)=1*(2*4-(6+1))\\
 u_{2} =2*(10-7)=2*(2*5-(6+2))=2*(2*(4+1)-(6+2))\\
 u_{3} =3*(12-9)=3*(2*6-(6+3))=3*(2*(4+2)-(6+3))\\
 u_{4} =4*(14-10)=4*(2*7-(6+4))=4*(2*(4+3)-(6+4))\\

$

$u_{10}=10*(2*(4+10)-(6+10))\\
=10*(28-16)
$

$...\\\\
u_{n} =n*(2*(n+n-1)-(6+n))\\
=n*(4n-2-6-n)=n(3n-8)\\

$

5 0

3 years ago

The least common multiples

Talja [164]

For second one the answer is 14

8 0

2 years ago

Read 2 more answers

Please help due tomorrow

icang [17]

Answer:

Here's What you do:

Draw a line that comes straight through the middle
It has to create 4 - 90° angles (use a protractor to measure)

There's a picture attached on how a perpendicular lines should look like.

Step-by-step explanation:

If my answer is incorrect, pls correct me!

If you like my answer and explanation, mark me as brainliest!

-Chetan K

4 0

2 years ago

I will give brainliest.

butalik [34]

17, you only have to add up a few because of the x and y placements. Hope this helps you :)

4 0

3 years ago

Read 2 more answers

Simplify the exponential expression <br> A- 5cdf<br> B- 60cdf<br> C- 60cdf <br> D- 5cdf

jekas [21]

------------------------------
(75c^2d^4f^8)/(15cd^3f^4)

75/15 x c^2d^4f^8 over cd^3f^4

5 x c^2d^4f^8 over cd^3f^4

5c^2-1d^4-3f^8-4

5c^1d^4-3f^8-4

5c^1d^1f^8-4

5c^1d^1f^4

5cd^1f^4

5cdf^4 or option A.
------------------------------

5 0

2 years ago