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Nat2105 [25]
3 years ago
5

The function c = 2.50(n – 2) + 4.50 represents the cost c in dollars of printing n invitations. Which of the following is not tr

ue?
A/Each invitation costs $4.50 to print.


B/The cost depends on the number of invitations printed.


C/For each additional invitation, it costs an extra $2.50 to print.


D/One cannot print just one invitation.
Mathematics
1 answer:
il63 [147K]3 years ago
3 0
Rewriting the function
c = 2.50(n-2)+4.50 

The variable 'n' is the number of invitation ordered and $2.50 is the price for one invitation.
If we want to print 2 invitation, the expression 'n-2' becomes '2-2=0' which means the company will make 2.50(0) + 4.50 = 0 + 4.50 = $4.50 income (which is the fixed price)

To make profit, the company must receive order more than 2 invitation

Answer: D
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Can someone please tell me the answer on this.
marishachu [46]

Answer: x = 31

Step-By-Step:

<u>To Find x:</u>

<u />\left(2x+20\right)+\left(x+10\right)+\left(2x-5\right)=180 (Angle Sum Property Of Triangles)

(Remove the brackets)

<u />2x+20+x+10+2x-5=18<u />

(Group Accordingly)

<u />2x+x+2x+20+10-5=180<u />

= 5x+20+10-5=180

= 5x\:+\:25 =180

= 5x= 180 - 25

= 5x = 155

= x=\frac{155}{5}

= 31

<u>Therefore</u> x = 31

So,

Angle A = x + 10 = 31 + 10 = 41

Angle B = 2*x + 20 = 2*31 + 20 = 82

Angle C = 2*x - 5 = 62 - 5 = 57

5 0
2 years ago
Make x the subject of the formula<br> х<br> +b=<br> a
blagie [28]

Answer:

x = a(c - b)

General Formulas and Concepts:

<u>Pre-Algebra</u>

  • Equality Properties

Step-by-step explanation:

<u>Step 1: Define Equation</u>

x/a + b = c

<u>Step 2: Solve for </u><em><u>x</u></em>

  1. Subtract <em>b</em> on both sides:                    x/a = c - b
  2. Multiply <em>a</em> on both sides:                     x = a(c - b)
5 0
3 years ago
Dudley is biking. He wants to cover 40 miles. If he travels 30 miles every 2 ours, what is the equation of a line that models y,
fgiga [73]

Answer:

y=40-15x

Step-by-step explanation:

Let x represent the number of hours.

We have been given that Dudley travels 30 miles every 2 hours, so distance covered in each hour by Dudley would be:

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Since Dudley travels 15 km per hour, so distance covered in x hours would be 15x.

We have been given that Dudley wants to cover 40 miles. So we can represent our given information in an equation as:

, where, y represents number of miles he has left to travel, after biking x hours.

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3 years ago
What does 6/2(1+2)= <br> need help
Zina [86]

▪ Answer:

9

▪ Step-by-step explanation:

Hi there !

6/2(1 + 2) =

= 3/1 × 3

= 3×3/1

= 9

Good luck !

7 0
3 years ago
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Find the value of a given <img src="https://tex.z-dn.net/?f=5%5Ea%5C%5C" id="TexFormula1" title="5^a\\" alt="5^a\\" align="absmi
ddd [48]

Answer:

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Step-by-step explanation:

A cube root is the same as a 1/3 power. The square of that gives a 2/3 power.

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_____

<em>Additional comment</em>

You can see the relationship between a root index and an exponent if you consider what the root means.

Consider a cube root, for example. When you cube the root, you get the original number:

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We know this product is ...

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This tells us that ...

  3a = 1   ⇒   a = 1/3

That is, ∛x = x^(1/3).

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5 0
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