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2 years ago

Which ordered pair is a solution of the equation 2x − y = 9?

2 answers:

6 0

You can try by plugging each ordered pair and seeing if the equation comes out true.

(5, 1)

2 * 5 - 1 = 9

That's correct so C is the correct answer.

levacccp [35]2 years ago

4 0

Answer:

5,1

Step-by-step explanation:

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What is 67 x 578 divide by 5?

MA_775_DIABLO [31]

Answer:

7745.2

Step-by-step explanation:

you need to multiply 67 by 578 which is 38726. then you divide it by 5. In short, you can just use calculator or you can use scratch paper.\

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2 years ago

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A three-letter word used to show division in a word problem.

Helga [31]

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3 years ago

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Bethany paid $408.75 for a pair of diamond stud earrings. The sale price was $375. What is the Percent of Sales Tax she paid for

9966 [12]

Answer:

She paid 9% of sales tax

Step-by-step explanation:

The sale price of diamond = $375

Let x be percent of sales tax

So, amount of tax = $x\% \times 375 = \frac{x}{100} \times 375 =3.75x$

So, Amount including tax = 375+3.75x

We are given that Bethany paid $408.75 for a pair of diamond stud earrings.

So, 375+3.75x=408.75

3.75x=408.75-375

$x=\frac{408.75-375}{3.75}$

x=9

Hence She paid 9% of sales tax

5 0

3 years ago

What indicators predict that a quadratic function will have a complex solution?

zysi [14]

The nature of the roots can be determined by the determinant of the equation. The determinant is:
b² - 4ac

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8 0

2 years ago

Define the value of the expression 3^2 x 3^{-5}

Tanya [424]

Answer:

Between 0 and 1

Step-by-step explanation:

The given expresion is

${3}^{2} \times {3}^{ - 5}$