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swat32
3 years ago
8

Question 9

Mathematics
1 answer:
andreyandreev [35.5K]3 years ago
3 0

Answer:

4n = 24

Step-by-step explanation:

Given

Cars = 4

Empty = 3

Occupied = 21

Required

Determine an equation to find number of seats

Let the number of seats in each car be represented by n;

If 1\ car = n

Then:

4\ cars = 4 * n

4\ cars = 4 n

This implies that there are 4n total seats

Solving further:

Occupied\ Seats + Empty\ Seats = Total

Substitute values for the above parameters:

21 + 3 = 4n

24 = 4n

Reorder

4n = 24 ---- This equation can be used to solve for n

You might be interested in
Solve for x: −2(x + 3) = −2(x + 1) − 4. (1 point)
NeTakaya

Answer:

Hey there!

Let's solve our equation below.

-2(x+3)= -2(x+1)-4

Let's distribute the parentheses.

-2x-6=-2x-2-4

We combine like terms.

-2x-6=-2x-6

We add 6 to both sides.

-2x=-2x

We divide both sides by -2

x=x

If, when solving an equation, you get one number or variable that equals itself, there are infinitely many solutions.

We can plug anything into this equation and it will always equal to same things, since x is just equal to whatever x value you want.

Therefore, there are infinitely many solutions.

I hope this helps!

8 0
3 years ago
Which problem can be solved by expression 3/8 divided 1/4?
NeTakaya

Answer:

3/8÷1/4=1 1/2

Step-by-step explanation:

I am not sure what you are asking here, So I am gonna explain how you divide this.

So using the KCF method (Keep Change Flip) You would KEEP the first fraction (3/8) and CHANGE the operation (from divide to multiply) then FLIP your second fraction (1/4 to 4/1)

After doing this, it should look like:

3 4

x

8 1

Now that we got that, you multiply from left to right. 3×4 is 12. 8×1=8.

That should leave you with 12/8. But this is an improper fraction. So you would divide top by bottom to get a mixed fraction.

It should look like this

01. 1 1/2

8 12

8

4

Step by step explanation:

8 only goes into 12 one time. So you would subtract 12 by 8, and get 4. From that you would get 1 4/8 but 1 4/8 can be simplified to 1 1/2.

So it is 1 1/2

4 0
3 years ago
Please Help !! Show All Work !!
GrogVix [38]

Answer:

1) (4,4)  2) (4,0)   3) (6,1)

Step-by-step explanation:

(\frac{5+13}{2} )(\frac{7+1}{2} )\\(\frac{8}{2} )(\frac{8}{2} )\\(4,4)

(\frac{-3+7}{2} )(\frac{-3+3}{2} )\\(\frac{4}{2} )(\frac{0}{2} )\\(4,0)

\frac{-5+x_2}{2} =1 multiply 1 by 2=2 then write(+5)-5+x_2=1(+5)\\x_2 = 6

\frac{3+y_2}{2} =2 multiply 2 by 2= 4 then write (-3)3+y_2=4(-3)\\y_2=1

4 0
3 years ago
This table shows values that represent an exponential function. What is the average rate of change for this function for the int
Pepsi [2]

Answer:

\boxed{12}

Step-by-step explanation:

When x = 3, y = 13

When x = 5, y = 37

Subtract both y-values to find the change:

37 - 13 = 24

Average of the change:

\frac{24}{2} = 12

6 0
3 years ago
A rectangular deck is 12 ft by 14 ft. When the length and width are increased by the same amount, the area becomes 288 sq . By h
julia-pushkina [17]
Well to get the area of 288 the dimensions would be a couple of things but 16 ft by 18 ft seems to work, so the dimensions increase by 4 ft on each side.

12+4=16
14+4=18

18*16=288
6 0
3 years ago
Read 2 more answers
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