So given a rectangle
sides are
_<u>x</u>_
x-5|__|x-5
x
the perimeter is 90 inches
perimeter is
x + x + (x-5) + (x-5) = 90
combine like terms
2x + 2(x-5) = 90
distribute
2x + 2x-10 = 90
combine like terms
4x - 10 = 90
add 10 to both sides
4x= 100
divide both sides by 4
x = 25
now to find the length of a side
x is 25
and x-5 is 20
to check and see if that's right:
25 + 25 + 20 + 20 =?= 90
50 + 40 =?=
90 = 90
Now to find the area
A = b * h
so
x * (x-5)
substitute
25* 20
500
The area of the rectangle is 500
Hope this helps :)
The answer is 10. Why? Well, see below for a list of steps and an explanation!
The answer to this problem is 10 because by using order of operations/PEMDAS, we can start the evaluation by solving P, which stands for Parenthesis.
Since 8 + 20 is inside parenthesis, we can start by solving this portion.
8 + 20 = 28
Now, for the next step, we can simplify by plugging 28 into the expression.
28 / 4 + 3
The E in PEMDAS stands for Exponents, but we can skip this step since there are none.
The M in PEMDAS stands for Multiplication, but we can skip this step since there is nothing to multiply.
The D in PEMDAS stands for Division, and there does happen to be division in this expression!
28 / 4 = 7
Now that we have our division portion solved, we can simplify the problem again by plugging 7 into the expression.
7 + 3
Now that we have our final simplification, we can add to get our answer.
7 + 3 = 10
Therefore, your answer is 10.
Your final answer: 10 is your final answer. If you need help, let me know and I will gladly assist you.
Answer:
One dime has diameter of 18 mm. As such 34 dimes will form a row 34×18=612 mm.
Step-by-step explanation:
The answer would be D....
