Answer:
21
Step-by-step explanation:
you stoopid
Answer:
They have its own reciprocal
Ruth’s new floor cost $432.
The cost can be calculated as follows.
First, calculate the area of dining room. Use the formula of rectangle area (width x length)
Area = width x length
= 6 yd x 9 yd
= 54 sq yd
Second, calculate the total cost.
Cost = 54 sq yd x $ 8 per sq yd
= $ 432
Hence it cost $ 432 to install the new wood floor.
Read more on rectangle here
brainly.com/question/15019502?referrer=searchResults
You first have to make an simple equation.
= How many pennies
= How many quarters
After that, since a penny is 5 Cents and a quarter is 25 Cents, we make the equation as:
(cents)
To write the whole entire thing in an equation is:
Since I brought the x from the left to right, we change the positive "" to negative ""
To bring the '' to , we get rid of the ""s from both equations.
Now, you are left with the simplified equation:
Now you find the .
= 28
Conclude:
So the y was the quarter and the x was the pennies.
Quarters = 13
Pennies = 28
Let, the integers = x,(x+1)
x*(x+1) = 56
x²+x = 56
x²+x-56 = 0
x²+8x-7x-56=0
x(x+8)-7(x+8)=0
x+8= 0 OR x-7=0
x = -8 OR x = 7
it would be -8 & -7 or 7 & 8
