Answer:
First, we know that the area of a rectangle of width W and length L is:
A = W*L
In the case of Roberto's plan, we can see that the length of the whole rectangle is:
L = 1.5ft + x + 1.5ft = 3 ft + x
And the width is:
W = 3ft + x + 3ft = 6ft + x
Then the area of the whole thing is:
A = (3ft + x)*(6ft + x)
This is what we wanted, a product of two polynomials that represents the area of Roberto's plot.
Now if we subtract the white square (is a square of sidelength x, then its area is A = x*x) we will get the area of the border;
The total area of Roberto's borders is:
Area of the border = (3ft + x)*(6ft + x) - x*x
= 3ft*6ft + 3ft*x + x*6ft + x^2 - x^2
= x*9ft + 18ft^2
First you have to multiply -2 and 2 which is -4x.
Then your going to distribute -4 to 4x which is -16x.
Now your going to distribute -4 and -3 which is 12.
So your simplified expression would be -16x + 12
Let’s start by finding the total amount of tickets sold
717+19+1=737
Now multiply by 5 to see how much money they initially brought in
737•5=3,685
Now let’s find the total expense of the prizes
166+(19•20)=t
166+380=546
Now subtract the expenses from the total ticket sales
3,685-546=3,139
They made $3,139 TOTAL
Now let’s divide the total made by the total tickets sold
3139 / 737 = 4.26
They made $4.26 PER TICKET
Hope this helps!
Donc pour trouver la réduction de 30% nous allons trouver 30% de 49 alors nous allons faire 30 × 100 × 49 = 14,7 14,7 est la réduction maintenant nous devons faire 49 € -14,7 € soit 34,3 €, le prix est maintenant de 34,3 €, désolé d'utiliser Google Translate pour vous aider, mais j'espère que c'est correct :)
Step-by-step explanation:
well..this is the answer..using..time formula
