How many square metres is equivalent to 12 370 cm2?<br> please answser ASAP

Ms. Thomas took her family and friend to the movies. There were a total of 16 people. Children tickets cost $6 and adult tickets

Korolek [52]

Answer:

11 adults

Step-by-step explanation:

First, set up a system of equations:

Let x = number of children and y = number of adults

There is a total of 16 people, so x+y = 16. This is your first equation.

Each child ticket costs $6, so 6x = cost of children's tickets based on the number of children present (x)

Each adult ticket costs $9, so 9y = cost of adult's tickets based on the number of adults present (y)

The total cost of tickets is $129, so 6x+9y = 129. This is your second equation.

Your system of equations is now this:

x + y = 16

6x + 9y = 129

You can solve this system using the method of elimination, where we will eliminate the variable x (number of children), since we are focused on y (number of adults).

Multiply the top equation by -6. This will give the following equation:

-6x - 6y = -96

You can now solve the system of equations by placing the new equation under the second equation like this:

6x + 9y = 129

-6x - 6y = -96

Now, add the two equations together.

6x + (-6x) = 0

9y + (-6y) = 3y

129 + (-96) = 33

After doing this, you get the following equation:

3y = 33

As you can see, the variable x has been eliminated, and you are left with y.

Solve the equation for y:

3y = 33

y = 33/3 = 11

y = 11 adults

5 0

4 years ago

Please help me thank youuuuu

riadik2000 [5.3K]

It would be E.
Pretty simple

7 0

3 years ago

Need help on a-e (Please label them a-b)

Scorpion4ik [409]

a) All three athletes accelerated because the slope of every line in the beginning in positive.

b) Dash decelerated towards the end because the slope of the line representing him becomes negative.

c) Flash maintained a constant speed because the slope of his line does not change.

d) Krash's line is horizontal because he did not move for that time.

e) Flash won the race because his line reaches 100 first.

4 0

3 years ago

Please please please help me with this. I can't remember how to work this problem out. If someone could explain to me how to do

RideAnS [48]

If the two triangles are congruent it means that their side lengths are equal, so we can assume that x = 3x - 8 and so 2x = 8 and x = 4. Hope that helps :)

6 0

4 years ago

Need help ASAP I tried to do the problem but I don't know how

inysia [295]

Answer:

see below

Step-by-step explanation:

(a) the graph is symmetrical about the horizontal axis. It has a maximum value of r = 3 at θ = π.

__

(b) The graph is symmetrical about both the horizontal and the vertical axis. It has a maximum value of r = 1 at θ = 0 and θ = π. (Note this curve has subtle differences from the inner loop of the above curve.)

_____

<em>About how</em>

As with any graphing problem, when doing it by hand, one chooses enough points to give the general shape of the curve. In some cases, quite a few points may be required. It is often helpful to use a spreadsheet for calculating the point values. Here, we've graphed the equations using "technology"--a graphing calculator.

7 0

3 years ago

How many square metres is equivalent to 12 370 cm2? please answser ASAP