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3 years ago

7

The camera Melissa wanted for her birthday is on sale at 41% off the usual price. The amount of the discount is $86.10. What w

as the original price of the camera

1 answer:

ludmilkaskok [199]3 years ago

6 0

The answer is 121.401.

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Solve. 10x^2 = 6 + 9x10x 2 =6+9x10, x, start superscript, 2, end superscript, equals, 6, plus, 9, x Choose 1 answer: Choose 1 an

yulyashka [42]

Answer:

Option B.

Step-by-step explanation:

If a quadratic equation is defined as

$ax^2+bx+c=0$ .... (1)

then the quadratic formula is

$x=\dfrac{-b\pm \sqrt{b^2-4ac}}{2a}$

The given equation is

$10x^2=6+9x$

It can rewritten as

$10x^2-9x-6=0$ .... (2)

On comparing (1) and (2) we get

$a=10,b=-9,c=-6$

Using quadratic formula we get

$x=\dfrac{-(-9)\pm \sqrt{(-9)^2-4(10)(-6)}}{2(10)}$

$x=\dfrac{9\pm \sqrt{81+240}}{20}$

$x=\dfrac{9\pm \sqrt{321}}{20}$

Therefore, the correct option is B.

6 0

4 years ago

Read 2 more answers

If p=m and n=16 in the equation m/45 = n/p, what is the value of m?

Andrej [43]

M=p=x
x/45=16/x
x^2=720
x=sqrt(720)
sqrt mean root
m= sqrt(720)

6 0

3 years ago

85 points, please answer ASAP question below, my brain is hating me today, I feel like this is easy but I just can't get it

san4es73 [151]

Answer:

25

Step-by-step explanation:

420 - 45 = 375

375 / 15 = 25

5 0

3 years ago

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What is the answer plz need help

slamgirl [31]

Answer:

Fraction Form: (-1/2)

Decimal Form: (-0.5)

Step-by-step explanation:

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3 years ago

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A patient is to receive 2.6 grams of medication. The medication is available in capsules of 325 milligrams. How many capsules sh

sesenic [268]

2.6 gr = 2,600 mgr
2,600 mgr /325=8
Answer is 8 capsules

8 0

3 years ago