9x + 4 = 58
9x = 54
x = 6
The number is 6.
Answer:
x=3, solution is not extraneous
Step-by-step explanation:
we have

Solve for x
squared both sides


<u><em>Verify</em></u>
For x=3



-----> is true
therefore
x=3, solution is not extraneous
10,000 x .10 = $1000
22500-10000=12500 x .12 = $1500
$1000 + $1500 = $2500
<span>0+3⋅c>250</span>
<span>50+3⋅c−50>250−50</span>
<span>3⋅c>200</span>
<span><span><span>3⋅c</span>3</span>><span>2003</span></span>
<span>c><span>66.7</span></span>
<span><span>so 67 sales rouned</span></span>
Notice the corners; the corner on each triangle with one line is equivalent, and the same goes for the corner on each triangle with two lines, and the corner on each triangle with three lines. this is just a way to know which angles match up!
this means the answer would be:
D!