27.) Because the area is 60, we know that the two side lengths, x and x + 4 will multiply to equal that.
In other words,
x(x+4) = 60
Distribute the x
x^2 + 4x = 60
Complete the square:
1.) Take the middle term, 4, divide it by 2, then square it. You get 4 again.
2.) Add 4 on both sides of the equation:
x^2 + 4x + 4 = 64
3.) Factor the left side, you'll find that it is a perfect trinomial.
(x + 2)(x + 2)= 64
4.) Simplify (x + 2)^2 = 64
5.) Square root both sides:
(x + 2) = +/- 8
Because side lengths cannot be negative, it must be positive 8.
6.) x + 2 = 8
7.) Subtract 2 on both sides, you'll see that x = 6 :)
Think about the way the cupcakes were set up...
Total cost + (cost per cupcake/cup of lemonade x # of cupcakes/cups of lemonade sold)
Revenue would be how much they’re charging for each cupcake/cup of lemonade x # sold
$492.03
the price is already discounted, so then you just multiply 546.7*.10 and that equals 54.67
subtract 54.67 from 546.7
the total is now 492.03
There are 2 1/3 apples for each person.
The whole number 2 is the number of whole apples each person gets. The numerator 1 is the number of pieces of the remaining apple each person gets; the denominator 3 is the number of pieces the remaining apple is cut into.'
You and three friends buy a pizza with 8 slices to share. Each friend gets 2 slices each because 1 divided by 1/4 is 25% and 25% of that pizza is 2 slices
Answer:
D.
Step-by-step explanation:
x is divided by 2 each time for its y.
