9514 1404 393
Answer:
13 cm wide; 15 cm long
Step-by-step explanation:
Let w represent the original width. Then the original length is (w+2) and the original area is w(w+2). After the decrease, the width is (w-1) and the length is (w+1). The decreased area is (w-1)(w+1). The difference between these areas is 27, so we have ...
w(w+2) -(w-1)(w+1) = 27
w^2 +2w -(w^2 -1) = 27
2w +1 = 27
w = (27-1)/2 = 13
The original piece of cardboard was 13 cm wide and 15 cm long.
An average of values added up then divided by their number.
Answer:
I canot answer this
Step-by-step explanation:
<u>Answer with Step-by-step explanation:</u>
We are given two tables and we are to complete the missing values.
For table one, we are to substitute the given values of x in the term
:
when x = 0, 
when x = 2, 
when x = 4, 
For table two, we are to substitute the given values of x in the term
:
when x = 0, 
when x = 2, 
when x = 4, 
Answer:
137
Step-by-step explanation:
The two angles form a straight line so they are supplementary or add to 180 degrees
2x+4 + 6x+20 = 180
Combine like terms
8x +24 = 180
Subtract 24 from each side
8x+24-24= 180-24
8x = 156
Divide each side by 8
8x/8 = 156/8
x = 19.5
We want to find PQS
PQS = 6x+20
= 6*19.5 +20
=117+20
=137