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
Murljashka [212]
2 years ago
10

There is a competition in the cinema to win free tickets. You must guess the ages of the four employees. Here are the clues: - W

hen you add up all the ages, the total is 106; Kirk is twice the age difference of "manager" and 10; Brian is 12 years younger than twice the manager's age; Matt is 6 years older than half the manager's age. (the "manager" is like the boss or manager). What are all the ages of the four employees? Make four "Let" phrases, one for each employee (including the manager) *
Mathematics
1 answer:
jenyasd209 [6]2 years ago
8 0

Answer:

Kirk is <u>28</u> years old, Brian is <u>36</u> years old, Matt is <u>18</u> years old, and the manager is <u>24</u> years old.

Step-by-step explanation:

Let k be Kirk's age.

Let b be Brian's age.

Let m be Matt's age.

Let m_{1} be the boss/manager's age.

From the information given, we can set up 4 equations:

k+b+m+m_{1}=106

k=2(m_{1}-10)

b=2m_{1}-12

m=\frac{1}{2}m_{1}+6

Rewrite the first equation, substituting k, b, and m in terms of m_{1} to get:

2(m_{1}-10)+(2m_{1}-12)+(\frac{1}{2}m_{1}+6)+m_{1}=106

Open up the parentheses using the distributive property (which is a(b-c)=ab-ac) and combine like terms to get:

5.5m_{1}-26=106

Add 26 to both sides to reach:

5.5m_{1}=132

Thus, m_{1}=24. Substitute 24 for m_{1} in the second, third, and fourth original equations to find that k=28, b=36, and m=18. Therefore, Kirk is <u>28</u> years old, Brian is <u>36</u> years old, Matt is <u>18</u> years old, and the manager is <u>24</u> years old. To check, you can add up all of the ages to get 106.

Hope this helps :)

You might be interested in
HELP AND WHO WANTS TO CHAT
netineya [11]

Answer:

less than half

Step-by-step explanation:

7 0
2 years ago
Read 2 more answers
How do you do this? Help
ololo11 [35]

Answer: I AM SORRY

Step-by-step explanation:

watch a video about it

8 0
2 years ago
(-6,0) ; slope = 2/3
marusya05 [52]

Answer:Slope Intercept

Y=2/3m-6

4 0
2 years ago
Read 2 more answers
Graph the line and the parabola and find the points of intersection: y= 3-x ; y=x(squared)+x-12
melomori [17]

Answer:

Step-by-step explanation:

We have to graph a line y = 3 - x which has the slope = -1 and y intercept 3.

We will select two points where line intersects at x = 0 and y = 0

The given line will intersect x-axis at (3, 0) and at y- axis (0, 3).

Joining these two points we can draw a straight line showing y = -x + 3

Now we will draw the parabola given by equation y = x² + x - 12

We will convert this equation in vertex form first to get the vertex and line of symmetry.

Standard equation of a parabola in vertex form is

y = (x - h)² + k

Where (h, k) is the vertex and x = h is the line of symmetry.

y = x² + x - 12

y = x² + 2(0.5)x + (0.5)²- (0.5)²-12

y = (x + 0.5)² - 12.25

Therefore, vertex will be (-0.5, -12.25) and line of symmetry will be x = 0.5

For x intercept,

0 = (x + 0.5)² - 12.25

x + 0.5 = ±√12.25

x = -0.5 ± 3.5

x = -4, 3

For y- intercept,

y = (0+0.5)² - 12.25

 = 0.25 - 12.25

y = -12

So the parabola has vertex (-0.5, - 12.25), line of symmetry x = 0.5, x intercept (4, 0), (and y-intercept (0, -12).

Now we have to find the points of intersection of the given line and parabola.

For this we will replace the values of y

3 - x = x² + x - 12

x² + 2x - 15 = 0

x² + 5x - 3x - 15 = 0

x(x + 5) - 3(x + 5) = 0

(x - 3)(x + 5) = 0

x = 3, -5

For x = 3

y = 3- 3 = 0

For x = -5

y = 3 + 5 = 8

Therefore, points of intersection will be (3, 0) and (-5, 8)

 

4 0
3 years ago
Order the following numbers from least to greatest.<br> 4.23<br> 9<br> 2<br> V17
Marrrta [24]

Answer:

√17, 4.23, 9/2

have a nice day!

6 0
3 years ago
Other questions:
  • In angle L M N the measure of angle L is equal to the measure of angle M. The measure of angle N is twice the measure of angle M
    11·1 answer
  • Please help on this question <br> !
    8·1 answer
  • Can someone help me with only #17, B?
    13·1 answer
  • Two small questions...
    6·1 answer
  • $240 was shared in the ratio of 2:3:1 by Jacob,
    6·1 answer
  • the partial factorization of 2 x - 3 x - 10 is modeled with algebra tiles which unit tiles are needed to complete the factorizat
    5·1 answer
  • Scholarship A is worth $3000 and costs $10 to apply. Scholarship B is worth $4000 and costs $25 to apply. You have a 5% chance o
    10·1 answer
  • Need somebody that’s at mathematics. put your social media name below!
    11·1 answer
  • Given F(x) = 3x-2 and G(x) = 4-x2. Evaluate 2F(1) - 3G(3).
    8·1 answer
  • True or false
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!