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atroni [7]
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!

Mathematics
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.
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kondaur [170]

Step-by-step explanation:

$21=per hour mowling

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<u>gardening</u><u>=</u><u>$</u><u>17.1875 </u><u>×</u><u>$17=$292.1875</u><u>(</u><u>for</u><u> </u><u>16</u><u> </u><u>hours</u><u>)</u>

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<u>Gardening</u><u> </u><u>=</u><u>$</u><u>275</u><u>÷</u><u>$</u><u>17</u><u>=</u><u> </u><u>$</u><u>16.1764705882</u><u> </u><u>(</u><u>970</u><u> </u><u>hours</u><u>,</u><u>9</u><u> </u><u>minutes</u><u>,</u><u>80</u><u> </u><u>seconds</u><u>)</u>

<u>A</u><u> </u><u>little</u><u> </u><u>help</u><u> </u><u>not</u><u> </u><u>fully</u><u> </u><u>answered</u>

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8 0
3 years ago
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Lerok [7]

Answer:

(-4, -1/2)

Step-by-step explanation:

Just by looking at the graph I can estimate that the midpoint of AB is (-4, -1/2) but we can also use midpoint formula to get a for sure answer.

Midpoint Formula: <em>((x1 + x2)/2, (y1 + y2)/2)</em>

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6 0
3 years ago
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Ira Lisetskai [31]

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From an algebra point of view, where s is a side of the square,

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s = 8 by discarding the -8 (lengths cannot be negative)

Now that we know a square's side we need its perimeter. Each side is the same, so a square's perimeter is four times a side.

4 * 8 = 32, which is our perimeter.


Therefore 32m² of material are needed.

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larisa86 [58]

Answer:

No

Step-by-step explanation:

(0,0) cannot help prove the values of y=4x because you cant confirm the gradient and it certainly wont help you confirm whether there's no intercepts.

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Alex777 [14]

Answer:

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x=28

3 0
3 years ago
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