It is a square, so you know the sides are equal. You also know that 49 is a squared number. so you do 49 square rooted and you get 7. the perimeter is adding all the side lengths. So you take 7 and multiply it by 4 since a square has 4 sides. and u have your perimeter. 28!<span />
The number is xy
x+y=12
10y+x=54+10x+y
so
x+y=12
minus x both sides
y=12-x
sub that for y
10(12-x)+x=54+10x+(12-x)
120-10x+x=54+10x+12-x
120-9x=66+9x
add 9x both sides
120=66+18x
minus 66 both sides
54=18x
divide both sides by 18
3=x
sub back
y=12-x
y=12-3
y=9
the number is 39
-7<span>° F
There is really no work to be shown unless you do:
0-7=-7
-7</span><span>° F</span>
Answer:
1 135
2 80
3 145
4 45
Step-by-step explanation:
Thats the answer
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Answer:
<h2>
X = 3</h2>
Step-by-step explanation:
Move constant to R.H.S and change its sign:
Calculate the difference
Hope this helps...
Good luck on your assignment..
