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quester [9]
3 years ago
5

A group of 5 friends is out to diner. Each of the friends is going to order the dinner special, and they have a coupon for $10 o

ff the entire bill. Which equation can be used to find the total cost of all the dinners after the coupon is applied?
Choices: 10d-5=c
5d+10=c
10d+5=c
5d-10=c
Mathematics
2 answers:
Andreas93 [3]3 years ago
6 0

Answer:

I believe the last one is correct

~if this is correct, plz mark brainliest thx!~

Step-by-step explanation:

Fantom [35]3 years ago
5 0
10d-5=c
Should be your answer
10d
(D=dollars)
Off the bill which means subtraction
And 5 for the friends then c as your variable
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<u>ANSWER: </u>

The roots of 6 x^{2}-9 x+2=0 are \frac{9+\sqrt{33}}{4}, \frac{9-\sqrt{33}}{4}

<u>SOLUTION:</u>

Given, quadratic equation is 6 x^{2}-9 x+2=0 --- eqn (1)

We need to find the roots of given quadratic equation using quadratic formula.

Quadratic formula for general quadratic equation  a x^{2}+b x+c=0 is X=\frac{-b \pm \sqrt{b^{2}-4 a c}}{2 a}

Here, for eqn (1) a = 6, b= -9 and c = 2

X=\frac{-(-9) \pm \sqrt{(-9)^{2}-4 \times6 \times 2}}{2 x 2}

X=\frac{9 \pm \sqrt{81-48}}{4}

\begin{array}{l}{X=\frac{9 \pm \sqrt{33}}{4}} \\ {X=\frac{9+\sqrt{33}}{4}, \frac{9-\sqrt{33}}{4}}\end{array}

Hence the roots of 6 x^{2}-9 x+2=0 are \frac{9+\sqrt{33}}{4}, \frac{9-\sqrt{33}}{4}

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Simplify by using the distributive property 5 ( 2x - 5 )
drek231 [11]
Hello!

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We have now proven that 5(2x – 5) is equal to 10x – 25. Therefore, the correct answer is C.

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