1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Dimas [21]
2 years ago
9

A group of seven adults went to the movies. The total cost of the movie tickets was $30. This doesn't seem possible, does it? Af

ter all, 30 is not evenly divisible by 7. Ah, but there's a hitch. The reason that $30 was the total cost was that some members of the group were senior citizens, so they got to see the movie at half price. How many of the group were senior citizens, and how much did the tickets cost?
Mathematics
1 answer:
Artyom0805 [142]2 years ago
4 0

Answer:

no. of senior citizens=x

no.of other people=7-x

cost=30=k(7-x)+(k/2)x. k is the cost of a ticket

k(7-x+x/2)

k(7-x/2)-30=0

k=60/(14-x)

now do trial and error substitution for (x<7) until u get a whole number for k also (k<30). if you have the skills you can suggest the number yourself

ie x= 2, k=5$

You might be interested in
Factor the expression completely. 6×3- 4×2 – 16x A. 0 B. 2x(3×2 – 2x – 8) C. 2x(3x + 4)(x – 2) D. 4x(2x + 1)(x – 4) E. 2x(2×2 +
Ghella [55]

Answer:

<h3>The answer is option C</h3>

Step-by-step explanation:

6x³ - 4x² - 16x

To factorize the expression first factor out the GCF out

The GCF in the expression is 2x

That's

2x( 3x² - 2x - 8)

Next Factorize the terms in the bracket

To factorize write - 2x as a difference

that's

2x( 3x² + 4x - 6x - 8)

<u>Factor out x from the expression</u>

2x [ x( 3x + 4) - 6x - 8 ]

<u>Next factor out - 2 from the expression</u>

2x [ x ( 3x + 4) - 2( 3x + 4) ]

<u>Factor out 3x + 4 from the expression</u>

We have the final answer as

<h3>2x( 3x + 4)( x - 2)</h3>

Hope this helps you

4 0
3 years ago
Show the Distributive property of division over addition and subtraction plz!
Fed [463]
The distributive property of division over addition and substraction is idk
4 0
3 years ago
Read 2 more answers
Please answer this question now
Rashid [163]

Answer:

54

Step-by-step explanation:

To solve problems like this, always recall the "Two-Tangent theorem", which states that two tangents of a circle are congruent if they meet at an external point outside the circle.

The perimeter of the given triangle = IK + KM + MI

IK = IJ + JK = 13

KM = KL + LM = ?

MI = MN + NI ?

Let's find the length of each tangents.

NI = IJ = 5 (tangents from external point I)

JK = IK - IJ = 13 - 5 = 8

JK = KL = 8 (Tangents from external point K)

LM = MN = 14 (Tangents from external point M)

Thus,

IK = IJ + JK = 5 + 8 = 13

KM = KL + LM = 8 + 14 = 22

MI = MN + NI = 14 + 5 = 19

Perimeter = IK + KM + MI = 13 + 22 + 19 = 54

4 0
3 years ago
Which values of x are solutions of the equation below
Mandarinka [93]

Answer:

x = 3.3 and -0.3

Step-by-step explanation:

Given the expression

1/x-4 + x/x-2=2/x^2-6x+8

Find the LCM

x-2+x(x-4)/(x-4)(x-2) = 2/x^2-6x+8

Since the denominator, are the same they cancels out

x +1 + x(x-4) = 2

x+1 + x²-4x = 2

x²-3x + 1 - 2 = 0

x² - 3x - 1 = 0

Factorize

x =3±√9+4/2

x =3±√13/2

x = 3±3.6/2

x= 6.6/2 and -0.6/2

x = 3.3 and -0.3

4 0
3 years ago
Find the value of x for which l is parallel to m.
lozanna [386]

I think its the same on both sides so it would be 154 hope this helps and is right have a nice day

8 0
2 years ago
Other questions:
  • Write a division algebra equation that has a solution of 42
    9·1 answer
  • Two angles are supplementary. One angle is 5degrees° more than six times the other. Find the measure of each angle.
    9·1 answer
  • What is the value of the function, f(x)=x^2-5x when x=-5 ?
    6·1 answer
  • Plz don't help whats 2+2
    10·1 answer
  • Which set shows some of the solutions to 4y&gt;12?
    6·1 answer
  • How do you simplify -50 1/2+ 12.3
    8·1 answer
  • Find the measures of the interior angles of the triangle.
    6·1 answer
  • Need help with these 5 questions any help with any of these is a big help!
    8·1 answer
  • What is the equation of the line that passes through (5,-2) and (-3, 4)?
    6·1 answer
  • Please help me I need the answer for this question. correct one please
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!