Answer:


Step-by-step explanation:
878/3 is 28 with a remainder of 10! The error is when they subtracted 258-248 wrong
Answer:
Step-by-step explanation:
Length = x+3
Width = x-1
Area = l*b
where l is the length of the bedroom
and b is the breadth or width of the bedroom
The polynomial can be written as:
Area=(x+3)(x-1)
Now we will find the area of the room when x=10
First we will find the values of length and width.
Length = x+3
Length = 10+3 = 13
Width = x-1
Width = 10-1=9
Now put the values in the formula:
Area=l*b
Area=13*9
Area = 117 square feet....
One ate 1/3, Another ate = 1/4.
Total ate = 1/3 + 1/4 = (4 + 3) / 12 = 7/12
Fraction the third girl got = (The whole =1) minus 7/12
= 1 - 7/12 = (12 - 7) / 12 = 5/12
The third girl ate 5/12 of the pizza.
Answer:
perimeter = 26
Step-by-step explanation:
<u>perimeter of a rectangle = 2L + 2W</u>
where:
L = 5x² - 2
W = 7 + 3x
Let x = 1
find: Perimeter
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substitute values into the formula:
P = 2(5 * 1² - 2) + 2(7 + 3 * 1)
P = 2(3) + 2(10)
P = 6 + 20
P = 26
therefore,
the perimeter = 26