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german
3 years ago
9

Solve quadratic equation by factoring x^2-6x+9=0

Mathematics
1 answer:
Ray Of Light [21]3 years ago
7 0
What you have to find is what numbers add to -6 and multiply to 9. these numbers would be -3 and -3 (-3+-3=-6, -3*-3=9). substitute these in for -6x as x^2-3x-3x+9=0. then factor out c and three to get x(x-3)-3(x-3)=0. x-3=0 in both cases, so x is three.
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Rock musician Donny West is paid 15% on his CD sales and tour video sales. Last year, he sold one million CDs and 550,000 videos
Likurg_2 [28]

Answer:

Total amount of CD sales was $750,000.

Step-by-step explanation:

one million CDs were sold at $5/CD.

1,000,000 × $5 = $5,000,000

Donny gets 15% of the sales, so he'll receive the amount of CD sales as:

$5,000,000 × 15/100 = $50,000 × 15 = $750,000.

Optional:

If you add both of the multiplied values, 1,000,000 × 5 + 550,000 × 6

= $5,000,000 + $3,300,000

= $8,300,000

so, 15% of it would be $1,245,000.

if you calculate both separately and then add them, you'll still get $1,245,000.

I hope this'll help.

3 0
3 years ago
Rayne sold 3 desks at the local trade show. He paid $4.00 to rent the booth. He gave half of his revenue to the carpenter and wa
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Step-by-step explanation:

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adell [148]

Answer:

2/11

Step-by-step explanation:

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6 0
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