The area of a rectangle is its <u>length x width</u>.
The perimeter of a rectangle is its <u>length + length + width + width</u>.
Let's have l stand for length and w for width. A will stand for area and P for perimeter. This gives us:
399 = l x w
80 = 2l + 2w We can divide both sides of this equation by 2 to get <u>40 = l + w</u>.
Now we need to find two numbers whose sum is 40 and product is 399.
Fitting some random numbers in gives us the numbers 19 and 21 for the length and width.
In this question the main part is to convert the mixed fraction into the decimal form. I hope the procedure i am going to show would be the easiest procedure to solve this kind of problems. Now let us get down to solving the problem in hand.
6 3/4 = 27/4
We have reached the above deduction by multiplying 6 and 4 and then adding 3 with the result. Now we will come down to the decimal part.
27/4 = 6.75
So 6.75 is the decimal form of 6 3/4.
Answer:
the first one
Step-by-step explanation:
the equation for it is y=1.4x
Answer:
9 in = length
Step-by-step explanation:
The formula for the volume of a rectangular prism is V = LWH
Using this formula we get 2970 = 22(15)L
= 330L
L= 9 in = length
Answer:
y = 1/2 x + 9
Step-by-step explanation:
y = 1/2 x + b
4 = (1/2)(-10) + b
4 = -5 + b
b = 9