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motikmotik
3 years ago
9

How do you solve problems using absolute value

Mathematics
2 answers:
MaRussiya [10]3 years ago
4 0

Answer:

ep 1: Isolate the absolute value expression.

Step2: Set the quantity inside the absolute value notation equal to + and - the quantity on the other side of the equation.

Step 3: Solve for the unknown in both equations.

Step 4: Check your answer analytically or graphically.

Step-by-step explanation:

marta [7]3 years ago
3 0

Answer:

Step 1: Isolate the absolute value expression.

 

Step2: Set the quantity inside the absolute value notation equal to + and - the quantity on the other side of the equation.

Step 3:Solve for the unknown in both equations.

Step 4: Check your answer analytically or graphically.

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Two friends go out to eat and order the same meal. They pay a 6% sales tax and a 20% tip on their meals. The total bill, includi
vova2212 [387]

Sales tax and tip will increase the price of an item.

The cost of each meal is: $10.89

Let the cost of both meals be x.

A 20% tip means that, the current price is:

Price = x \times (1 + 20\%)

A 6% sales tax on the meal means that, the current price is:

Price = x \times (1 + 20\%) \times (1 + 6\%)

So, we have:

Price = x \times (1 + 0.20) \times (1 + 0.06)

Price = x \times (1.20) \times (1.06)

Price = x \times 1.272

The amount paid is $27.72

So, the equation becomes

27.72= x \times 1.272

Make x the subject

x = \frac{27.72}{1.272}

x = 21.78

So, the cost of each meal is:

Each= \frac{21.78}{2}

Each= 10.89

Hence, the cost of each meal is: $10.89

Read more about sales tax at:

brainly.com/question/19715580

3 0
3 years ago
What is the Slope of the line passing through the points (0,4) and (-8, -1
Contact [7]
Slope = (y2 - y1) / (x2 - x1)
(0,4)...x1 = 0 and y1 = 4
(-8,-1)...x2 = -8 and y2 = -1
now we sub and solve
slope = (-1 - 4) / (-8 - 0) = -5/-8 = 5/8 <=

3 0
3 years ago
Read 2 more answers
If a polygon is drawn inside a circle, we say that the? A. polygon is tangent to the circle B. circle is inscribed in the polygo
Serga [27]
Answer is D since the polygon is inside the circle !!!
3 0
3 years ago
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When are the expressions 3x +12 and 3(x+4) equvialent
zysi [14]

Answer:

For any value of x

Step-by-step explanation:

Solve by using system of equations!

3x+12

3(x+4)=3x+12

3x+12=3x+12

x=x

This means that any value of x would create the same answer for both equations.

6 0
3 years ago
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Using the graph as your guide, complete the following statement.
Alex787 [66]

Because the parabola intercepts the x-axis only once, we conclude that the discriminant is 0.

<h3>What can we say about the discriminant?</h3>

For a quadratic equation:

y = a*x^2 + b*x + c

The discriminant is:

D = b^2 - 4ac

  • If D = 0, there is only one real zero.
  • If D > 0, there are two real zeros.
  • If D < 0, there are two complex zeros.

In the graph we can see that the parabola intercepts the x-axis in its vertex, then the parabola has only one real zero, then we conclude that the discriminant is equal to zero.

If you want to learn more about quadratic equations:

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8 0
2 years ago
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