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3 years ago

Andrea wants a diamond necklace and its selling price is $60. Theres a discount of 5%how much did andrea pay?

Mathematics

1 answer:

Nataly_w [17]3 years ago

8 0

$60 • 0.05 = 3
$60 - $3= 57

ANSWER: ANDREA PAID $57

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What are the domain and range of this function? {(-1,6),(2,0), (9,–3),(-4,6)}

Roman55 [17]

Answer:

D: {-1,2,9,-4}

R: {6,0,-3}

Step-by-step explanation:

domain are the x-values

range are the y-values

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3 years ago

In the expression -5g12 which part is the base?

Montano1993 [528]

-5 is the base of -5g in this expression

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3 years ago

Please solve, -37-2v= -6(2v-3)-5

dezoksy [38]

Answer:

$\huge\boxed{v=5}$

Step-by-step explanation:

$-37-2v=-6(2v-3)-5\qquad\text{use the distributive property}\ a(b+c)=ab+ac\\\\-37-2v=(-6)(2v)+(-6)(-3)-5\\\\-37-2v=-12v+18-5\\\\-37-2v=-12v+(18-5)\\\\-37-2v=-12v+13\qquad\text{add 37 to both sides}\\\\-37+37-2v=-12v+13+37\\\\-2v=-12v+50\qquad\text{add}\ 12v\ \text{to both sides}\\\\-2v+12v=50\\\\(-2+12)v=50\\\\10v=50\qquad\text{divide both sides by 10}\\\\\dfrac{10v}{10}=\dfrac{50}{10}\\\\v=5$

5 0

3 years ago

Read 2 more answers

Find the slope. I also have the rest of the paper on my thing that I need help with. It’s due by tomorrow.

HACTEHA [7]

Answer:

-6/1 should be the slope

Step-by-step explanation:

6 0

3 years ago

Please help me with this problem<br><br> please show steps so i know for next time

vladimir2022 [97]

<h3>Answer: 2/3, -4/3</h3>

=========================================================

Explanation:

You could use the AC method to factor this, but the quadratic formula is the most efficient route in my opinion. This will avoid any guess-and-check.

Compare the original equation to the form $a\text{x}^2 + b\text{x} + c = 0$

We have a = 9, b = 6, and c = -8

Those values lead to...

$\text{x} = \frac{-b\pm\sqrt{b^2-4ac}}{2a}\\\\\text{x} = \frac{-6\pm\sqrt{(6)^2-4(9)(-8)}}{2(9)}\\\\\text{x} = \frac{-6\pm\sqrt{324}}{18}\\\\\text{x} = \frac{-6\pm18}{18}\\\\\text{x} = \frac{-6+18}{18} \ \text{ or } \ \text{x} = \frac{-6-18}{18}\\\\\text{x} = \frac{12}{18} \ \text{ or } \ \text{x} = \frac{-24}{18}\\\\\boldsymbol{\text{x} = \frac{2}{3} \ \text{ or } \ \text{x} = -\frac{4}{3}}\\\\$

Side notes:

2/3 = 0.667 approximately
-4/3 = 1.333 approximately
Since your teacher did not give rounding instructions, I'll assume s/he wants the fraction form of each x value (rather than the decimal form). Be sure to follow all instructions given, and ask for clarification if need.
To confirm the solutions, replace every copy of x with either 2/3 or -4/3 (pick one value only). Simplifying the left hand side should lead to 0. I'll let you check each answer.

5 0

2 years ago